I predict that the much awaited iPad will do wonders for independent musician's.
Currently on the iPhone you have the ability to record and produce beats.
Personally, I've never taken these applications to seriously because they lacked the memory to be able to deliver the quality I wanted.
I think that the iPad changes all that.
The 1st generation iPad will give you up to 64GB.
The 2nd or 3rd generation will certainly surpass 100GB.
Therefore prepare to be able to produce, record and promote anywhere at anytime!
Wishing you continued success!