I suppose this beta was released in a hurry so it's suffice to say that it's far from perfect but I have much faith in Samir to improve this application to the best of his abilities.
My Review:
1.Too sensitive (Even for gaming, hoping to see an improvement there ..)
2.Lack of settings (But that will come with later versions)
3.Have to keep it perfectly horizontal to make it work perfectly (That's due to the nature of the accelerometer)
4.Back option missing (How about add the back option to the action of pulling the phone back ? Because, right-left-up-down-push down are already taken)
5.No problems in either landscape or potrait mode, works great on both