Twidroid Pro? Why not the standard (free) one? How many people really need multi-account support?
Pandora is brilliant, but only available in the US - what about the rest of the world?
Babbler? Many people (including me) moved from Babbler to Bloo. I haven't used Babbler in a while, so maybe it's better now?
Google Voice - also US only?
I agree with your other apps. They're all good.
What about:
GPS Status to see loads of info about your GPS, and save positions (like where you parked your car) to navigate to later.
Barcode Scanner (or the better ixMAT scanner) to scan QRCodes.
Missed Call for custom notifications (ringtone, led colour/blink rate, vibrate) for SMS, Calls, Calendar, etc, and even specific profiles for specific contacts.
No Signal Alert to tell you when you have no signal, and when it comes back.
Phone Finder for when your phone is lost or stolen, you can text it and it'll text and email you back the co-ordinates with a Google Maps link.
Pure Calendar widget for a brilliant highly customisable Calendar widget replacement.
SIM Checker Lite to email you and text you the phone's location and new phone number whenever a different SIM is put in your phone (such as after it's stolen).
Toggle Settings to toggle/change just about every setting on the phone, set up profiles of groups of these settings for Home, Low Battery, Meeting, Night time, Outdoor, etc, and have them activate automatically under specific conditions or times or manually.
