This is a must have app for all BlackBerry owners out there. If you like installing apps and themes and would rather not worry about filling up your device memory, you need this app.
It allows you to store, install and run pretty much limitless apps on your media card.
After installation, whenever you download anything, an option will pop up that says, "Install to SD card."
Its great and it also makes it really nice when you have to reinstall apps if you wipe your BB or even when you upgrade to a new one cause you just put in your media card, load what you want and you're good to go.
I purchased this app a while back when it was half price. It used to be $15. I paid $7.50. Now, they have dropped the price to $10. You can get it directly from the Aerize site or from the Crackberry.com App Store.
There is a free trial available so you can try the full functionality out before you buy.