I like the white app bar and the use of swiping to get between events and months. It looks like the next event is under the next month – you might try to not have those line up vertically.
Also, the smaller fonts you are using are not going to be readable on a phone. And I expect some of the touch targets (like for accept/decline) will be too small too.
You can preview any work by plugging an android phone into your computer and running Android Design Preview: http://code.google.com/p/android-ui-utils/downloads/list