I have 2 issues that I've seen reported in a number of posts in this forum that still aren't fixed in the 8.0.2 beta.

The first is the option under default actions to indicate whether to open an attachment within the native program or within GroupWise. The toggle was present in the 7.x clients, I have users looking for it in 8.

The other issue is modifying reocurring events in the calendar. I have a meeting coordinator that has monthly meetings that she schedules, and when she modifies one of the reocurring meetings, it doesn't prompt for "this instance" or "all instances," it is modifying all instances by default. We had to revert her backt o 7 because of this. The action seems to be working more like a sticky button, as my client changes the single instance every time, but the meeting coordinator's changes all instances every time.