I just switched to an Android device and Thumbcal is the only thing I miss desperately. Can't believe there isn't even a paid app that is comparable to Thumbcal.
Only dinosaurs still use thumbcal... but I leave 2 themes:
1) Fixed Thumbcal green
2) New Thumbcal orange
Too bad this app is not being developed for Android, there is no cal app in android market as good as thumbcal!!!!