But to my eyes as an Android user, I see a lot of consistency here. The ActionBar is firmly in place, so I know where to go for navigation. The visual metaphors vary in terms of actual look, but I get what's up.
For example, compare to very different apps: Catch and doubleTwist Alarm Clock. Both are "bounded" by their top bar (although Catch has elected to add extra app-specific chrome at the bottom, too). The navigation "upwards our out" between panes is consistently in the upper left. The additional actions for the app as a whole are on the top right.
In cases where the apps deviate (e.g., bottom bars in Gmail and Catch), the designers have had the good sense to use the standardized icons as opposed to further customization, helping to signal the user that this app does deviate from pure actoinbar navigation. The share, attach, favorite, and trash icons are all with pixels of standard.
A lot of iOS users first coming to Android (including myself) after the advent of ICS may be surprised once they realize how consistent the presence of the ActionBar is, even if it varies in appearance. I encourage you to play with one to see this in action. I certainly felt that sense of confusion at first because I'm used to unified navigation chrome from iOS for most things outside of games. I think this is just a case of longtime iOS users not being familiar with the visual language of the Android platform.