I always wondered the reason why different providers have different version of the software for the same model devices, why doesn't every provider use the latest version of the handheld code?

Are there are differences in performance? for example if I am in Canada on Rogers Network using a Pearl 8100 and install the latest version of TIM Italy's version of the handheld code, does that mean my devices might not function properly because that code is not approved by Rogers even though its a newer build? (I am just talking about functionality, not cosmetic things, like themes, etc)

A very frequently asked and answered question.

RIM writes all of the code, and the carriers test it and release it on their own schedules. No one here has any idea WHY they release (or delay) code when they do.

Newer versions tend to have bug fixes, and they are cumulative.

It is safe to run versions from a carrier other than your own. They do not disable or enable features in the code - that is done on their network itself. Installing code from a different vendor will not lock your phone.

Thanks for the quick reply, can we make this a sticky?

I just upgraded a Pearl from Rogers software to TIM Italy's software, it seems faster (when you are browsing through the media-> pictures, the thumbnails seem to appear faster than before.

WHY??