I don't know jack...but may need to

[Pedalboy]

I have a crack in the screen of my BJ II. I really like the device and have no specific tech lust for another model. However, the crack has been migrating and I may need a new device. If so, I will likely get the Jack after it becomes available next week. My queries- will I still need to cook the ROM to allow me to use Google with the GPS? Will I be able to do so? Will my purchased applications that sit on the SD card be able to be inerted right into a new device? Any thoughts out there?