Originally Posted by NJBlackBerry
Nope; you can not get code from one family (8800) on to another (8700). Can't be done. However, I believe there are several threads on 4.2 already being available for the 8700. You can load them onto you 8700r.
From my experience it seems that only the platform from a different family will not work, but the apps are not a problem provided the platform is of a minimum level, i.e you won't be able to use any release of 4.2.1 apps without platform 2.3.xx.