I have been wondering the same thing, as I have a storm 9530. I flashed the phone about 3 months ago and overall I am pretty happy. I have tried the original service books from a Cricket BB but they did not work. I even went to the store the other day to look at their settings, and I noticed a few things.
1. I am running on CDMA channel 1050, and theirs was a different frequency.
2. Their phone is a Tri-ban while the 9530 is a dual band (probably causing worse coverage when you are in rural areas).
3. When looking at the screen accessed by ##000000 they have a couple extra lines of data shown below. I don't recall the exact numbers that they had listed for each entry, but it didn't matter since I do not have a place to enter the info anyways.
MIP User =
Reverse Tunneling Support= True
Home Address 0.0.0.0
Primary HA Address 000.000.000.000
Secondary HA Address 000.000.000.000
User Profile Index: 0
I have been trying to find out if there is any way to upgrade the phone firmware ( I am not sure that a new OS would do it, but I could be wrong) to gain these features. As I believe that if we can enter these numbers along with the Cricket service books, then the only other step would be to switch to the Cricket BB plan.
If anyone else has any ideas or answers please chime in. We could be the first ones to really get everything working on the Cricket network for a flashed BB.