The OS of the device is what determines whether an app will work. What you will need to do is request new registration codes for all of your apps.
You may wish to take a look at the site in my signature. It's a product that allows you to store all of your 3rd party software registration data, and when you change devices, and thus change PIN numbers, just one click of a button can create all of the email messages to vendors requesting new codes.
There is a seven day trial period (fully functional). Give it a go and let me know what you think.
I just switched to the 8110 from the 8310 and using the new Desktop manager and the switch device option made switching everything over a snap, including all profiles. You will need to request new registration codes for OTA software. Good luck
Thanks for all the advice from those you replied!! Blackberry finally replied to my email as well and said they apps will switch over fine because the 8100 is not much different than the 8110 in that aspect.
Epiguards, where did you get the quote? Who said it? I wanted to use it.