So the Blackberry tablet is running an OS called QNX which will eventually replace Blackberry OS on their smartphones according to this post at Brighthand.
More importantly I’m told by Omenie (makers of Ellatron and M3000) that QNX has a lot of potential to be a great OS for mobile music. This does depend on RIM making a workable SDK SDK a) native b) free and c) cross-platform.
So, who knows, Blackberry could end up being a mobile music platform! I guess we’re a long way from knowing that for sure though.
Add to this that they will need to make it an attractive place to go for developers as well.