Touringplans.com has a great mobile app. It's accessible via your browser on your Blackberry. Point your browser to m.touringplans.com
The app gives you instant access inside and outside the parks to crowd estimates, wait times, FP distribution, etc. The data has always been within plus or minus 5 minutes every time I've used it in the parks.
You have to buy an annual subscription, but its very inexpensive (only $8.95 for a year). But you also have access to their regular website that has TONS of information and data. I'm a huge fan of this site and what you get for less than $9 per year.