I just successfully made a Sprint FrankenPre2 with all the help from the webosinternals guys, and it went extremely smoothly.

I was also able to transfer all of my SMS/chat threads over from 2 years of using the Pre- (in db3 database format) to be perfectly usable (and now finally backed up in the cloud) in the Pre 2 db8 format. This thread was extremely useful in doing that. It's still in the very first testing phases so fair warning and all that, but it already worked fine for me.

I just wanted to mention that thread in case anyone else is going from a Pre- to the Pre 2 or Pre 3 and didn't want to lose all of their SMS threads.