Free simple and easy software for pda

Simple arcade game - remake of C64 Zolyx (similar to Styx). Very addictive and a bit buggy :-) Source code of course included. Should run on all ARM GAPI compatible devices but tested only on iPaq.
System requirements:
- ARM, 16-bit color screen, GAPI

Simple Timer 1.0 is created with the aim to bring the missing feature from the iPhone to your fingertips. It is an easy to set timer with a countdown in minutes and seconds. It also features preset countdown times that can be customized. Useful for gym workouts, cooking, and game playing.

Requirements:

• Requires iPhone 2.1 Software update
  

Simple Tip Calculator 1 is a handy program designed specially for the Pocket PC which can help you compute the tip and receipt on Windows Mobile device. Many options for the amount of the tip to calculate. You can split the account in many ways. Include the tip with the amount to split. Very simple and light program for the Pocket PC.

Simple UML modeling tool. Create quickly UML (Unified Modeling Language) diagrams for your oriented object project.
System requirements:
- Palm OS v3.0

Simple quick invoice for taking an order while the customer is still at the counter.

Update on simple invoice program to figure what a customers balance will be on a portrait package.

eSQL database engine has been used by wide variety of applications. It has been included by General Dynamics for the US Navy for use onboard the DDG class of destroyers. It is also being used at Duke Energy and in other branches of the US military.
If you want the convenience of SQL without the size and setup hassles of database servers for your Windows Mobile device, or if you just simply want a best MS Access replacement, eSQL is right for you!
Note: eSQL for Windows Mobile is FREE for personal use and also FREE for use in any FREE products. Any use of eSQL for Windows Mobile for business or for profit should obtain the license from Vieka.
eSQL for Windows Mobile license key for personal or non-commercial use: 9npphedv7nvxgcpz
Main features:
- A complete database is stored in a single cross-platform file.
- No setup or administration needed.
- Implements most of SQL92 standard, such as multiple tables, multiple indexes, transactions with atomic commit/ rollback, subqueries, compound queries, views, triggers.
- Support for in-memory database.
- Support database size up to 2 terabytes.
- Very small memory footprint and faster than most popular database.
- Compression for compacting database.
- AES 256-bit encryption for securing data.
- Native C/C++ or standard ODBC API is simple and easy to use.
- eSQL.Net data provider for Microsoft .Net integration and rapid application development.
- A cross-platform graphical database manager can be used to administer an eSQL database.
- An interactive SQL command line tool is provided as an example of how to use eSQL in your application
System requirements:
- Windows Mobile Smartphone