GMap.NET is great and Powerful, Free, cross platform, open source .NET control. Enable use routing, geocoding and maps from Google, Yahoo!, Bing, OpenStreetMap, ArcGIS, Pergo, SigPac, Yandex, Mapy.cz in Windows Forms & Presentation, supports caching and runs on windows mobile!

OBD-II scanner for the GM 3800 Series II and III engine which implement the VPW protocol which will be capable of using hardware from AVT (838 and 84x boards), ELM, and LS1M. Eventual goal is to add PCM editing capabilities as well.

ServEvo is an application that allows you to turn your computer into a complete development environment

SQL Executer makes it easy to deploy, execute multiple scripts on SQL Server as you could do in VS 2008. In Visual Studio 2008's Database Project, one had an option to select multiple sql files and Run them on choosen DB. Visual Studio 2010, doesn't come with this functionality.

Sql Management lite a free query management tool. One stop application to interact with multiple databases and database servers. Supports MicroSoft Sql, Oracle