For all you new Sprint Evo 4G owners, Sprint says your running a different software than the old guys just because of a new part improvement. This is not really a big deal according to the forum administer of the Sprint official site. It will not change the user experience in any way, just the added part needs new software. The software number of is 3.30.651.2 for the new, and older models will have stay at 3.29.651.5. This does not affect the updatability of either models, and so there are no worries on that front, but it is just good to know why your software number seems different.

(Source: AndroidCentral)