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diff --git a/kpilot/lib/pilotAppInfo.h b/kpilot/lib/pilotAppInfo.h
new file mode 100644
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+++ b/kpilot/lib/pilotAppInfo.h
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+#ifndef _KPILOT_PILOTAPPINFO_H
+#define _KPILOT_PILOTAPPINFO_H
+/* pilotAppInfo.h			KPilot
+**
+** Copyright (C) 2005-2006 Adriaan de Groot <groot@kde.org>
+**
+*/
+
+/*
+** This program is free software; you can redistribute it and/or modify
+** it under the terms of the GNU Lesser General Public License as published by
+** the Free Software Foundation; either version 2.1 of the License, or
+** (at your option) any later version.
+**
+** This program is distributed in the hope that it will be useful,
+** but WITHOUT ANY WARRANTY; without even the implied warranty of
+** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+** GNU Lesser General Public License for more details.
+**
+** You should have received a copy of the GNU Lesser General Public License
+** along with this program in a file called COPYING; if not, write to
+** the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
+** MA 02110-1301, USA.
+*/
+
+/*
+** Bug reports and questions can be sent to kde-pim@kde.org
+*/
+
+#include "pilotLinkVersion.h"
+
+#include "pilot.h"
+#include "pilotDatabase.h"
+
+/**
+* A database on the handheld has an "AppInfo" block at the beginning
+* with some database-specific information and a common part.
+* This base class deals with the common part, the categories.
+*
+* Most data in the handheld is stored in @em categories ; every
+* record in every database, for instance, has a category assigned
+* to it (perhaps "Unfiled", but that's just another category).
+*
+* Every database has a category table assigning labels to the
+* categories that exist. There are CATEGORY_COUNT (16) categories
+* available for each database; labels may vary per database.
+*
+* This class encapsulates the basic category table manipulations.
+*/
+class KDE_EXPORT PilotAppInfoBase
+{
+protected:
+	/** Initialize class members after reading header, to alias data elsewhere.
+	* Only for use by the (derived) template classes below.
+	*/
+	void init(struct CategoryAppInfo *c, int len)
+	{
+		fC = c;
+		fLen = len ;
+	} ;
+
+public:
+	/** Constructor. This is for use by derived classes (using the template below
+	* only, and says that the category info in the base class aliases data in
+	* the derived class. Remember to call init()!
+	*/
+	PilotAppInfoBase() : fC(0L), fLen(0), fOwn(false) { } ;
+
+	/** Constructor, intended for untyped access to the AppInfo only. This throws
+	* away everything but the category information. In this variety, the
+	* CategoryAppInfo structure is owned by the PilotAppInfoBase object.
+	*/
+	PilotAppInfoBase(PilotDatabase *d);
+
+	/** Destructor. */
+	virtual ~PilotAppInfoBase();
+
+	/** Retrieve the most basic part of the AppInfo block -- the category
+	* information which is guaranteed to be the first 240-odd bytes of
+	* a database.
+	*/
+	struct CategoryAppInfo *categoryInfo()
+	{
+		return fC;
+	} ;
+
+	/** Const version of the above function. */
+	inline const struct CategoryAppInfo *categoryInfo() const
+	{
+		return fC;
+	} ;
+
+	/** Returns the length of the (whole) AppInfo block. */
+	inline PI_SIZE_T length() const
+	{
+		return fLen;
+	} ;
+
+	/** @see findCategory(const QString &name, bool unknownIsUnfiled, struct CategoryAppInfo *info). */
+	inline int findCategory(const QString &name, bool unknownIsUnfiled = false) const
+	{
+		return Pilot::findCategory(fC,name,unknownIsUnfiled);
+	} ;
+
+	/** Gets a single category name. Returns QString::null if there is no
+	* such category number @p i . */
+	inline QString categoryName(unsigned int i) const
+	{
+		return Pilot::categoryName(fC,i);
+	}
+
+	/** Sets a category name. @return true if this succeeded. @return false
+	* on failure, e.g. the index @p i was out of range or the category name
+	* was invalid. Category names that are too long are truncated to 15 characters.
+	*/
+	bool setCategoryName(unsigned int i, const QString &s);
+
+	/** For debugging, display all the category names */
+	inline void dump() const
+	{
+		Pilot::dumpCategories(fC);
+	};
+
+protected:
+	struct CategoryAppInfo *fC;
+	PI_SIZE_T fLen;
+
+	bool fOwn;
+} ;
+
+/** A template class for reading and interpreting AppInfo blocks;
+* the idea is that it handles all the boilerplate code for reading
+* the app block, converting it to the right kind, and then unpacking
+* it. Template parameters are the type (struct, from pilot-link probably)
+* of the interpreted appinfo, and the pack and unpack functions for it
+* (again, from pilot-link).
+*/
+template <typename appinfo,
+#if PILOT_LINK_IS(0,12,2)
+	/* There are additional consts introduced in 0.12.2 */
+	int(*unpack)(appinfo *, const unsigned char *, PI_SIZE_T),
+	int(*pack)(const appinfo *, unsigned char *, PI_SIZE_T)
+#else
+	int(*unpack)(appinfo *, unsigned char *, PI_SIZE_T),
+	int(*pack)(appinfo *, unsigned char *, PI_SIZE_T)
+#endif
+	>
+class PilotAppInfo : public PilotAppInfoBase
+{
+public:
+	/** Constructor. Read the appinfo from database @p d and
+	* interpret it.
+	*/
+	PilotAppInfo(PilotDatabase *d) : PilotAppInfoBase()
+	{
+		int appLen = Pilot::MAX_APPINFO_SIZE;
+		unsigned char buffer[Pilot::MAX_APPINFO_SIZE];
+
+		memset(&fInfo,0,sizeof(fInfo));
+		if (d && d->isOpen())
+		{
+			appLen = d->readAppBlock(buffer,appLen);
+			(*unpack)(&fInfo, buffer, appLen);
+			// fInfo is just a struct, so we can point to it anyway.
+			init(&fInfo.category,appLen);
+		}
+		else
+		{
+			delete fC;
+			fC = 0L;
+			fLen = 0;
+			init(&fInfo.category,sizeof(fInfo));
+		}
+	} ;
+
+	PilotAppInfo()
+	{
+		memset(&fInfo,0,sizeof(fInfo));
+		init(&fInfo.category,sizeof(fInfo));
+	}
+
+
+	/** Write this appinfo block to the database @p d; returns
+	* the number of bytes written or -1 on failure. This
+	* function is robust when called with a NULL database @p d.
+	*/
+	int writeTo(PilotDatabase *d)
+	{
+		unsigned char buffer[Pilot::MAX_APPINFO_SIZE];
+		if (!d || !d->isOpen())
+		{
+			return -1;
+		}
+		int appLen = (*pack)(&fInfo, buffer, length());
+		if (appLen > 0)
+		{
+			d->writeAppBlock(buffer,appLen);
+		}
+		return appLen;
+	} ;
+
+	/** Returns a (correctly typed) pointer to the interpreted
+	* appinfo block.
+	*/
+	appinfo *info() { return &fInfo; } ;
+	/** Returns a const (correctly typed) pointer to the interpreted
+	* appinfo block.
+	*/
+	const appinfo *info() const { return &fInfo; } ;
+
+protected:
+	appinfo fInfo;
+} ;
+
+
+#endif