Maemo Select is well done and impressive in many ways except for the fact that there are only two pages.
The Maemo garage is easy if you are used to SourceForge. If, OTOH, you are used to other app stores, you will be intimidated, frustrated, and lost in short order. Even as an advanced open source user, I have no idea if I've gotten to all the projects that I am interested in. For example, if I go to Project Cloud and select Tablet OS Version, it returns the following options: All OS, OS2006, OS2007, Web Based Software. There are 184 OS2008 projects that won't show up under any of those categories and no Maemo 5 projects show up (which I assume is incorrect).