as you may have seen, we uploaded Tree Size 3.1 and Logintime in menubar 1.1. Both updated for being Intel Mac apps so they run on Snow Leopard and Lion. Also we added little improvements recently. In the Login time app you can click the time to switch between login time and duration.
As the Real Studio projects are included, you can learn from us on how to make such applications. You need Real Studio 2011r4 with current MBS plugins.