It's almost a given rim is working on an amazon app for PB...they already have one for hh's(mp3 app)......and if I remember correctly the first ever PB app announced at devcon in october was a amazon kindle app for PB
Possibly the first to be announced as a standalone, but iirc the kobo app being pre-installed on the playbook was mentioned during the actual pb announcement
so it would count as coming sooner.
