Getting your Palm Pre Plus on the Sprint network won't be easy. You must have both an Activated Sprint Pre as well as a Palm Pre Plus (the writer of the tutorial got theirs from Craigslist) and a lot of making adjustments to both the hardware and the software.
It's only for those who are sure of what they are doing as you must modify your makefile, physically take apart the phones, swap boards and figure out how to put it all back together without ending up with an extra screw.
It won't be easy; the writer even suggests having a beer afterward.
[via PreCentral Forums]