probably REALLY stupid question here, but I *think* i have incrementally upgraded from the leaked 2.3.9 to 2.3.15, but I don't know how to actually CONFIRM that. it said success, but when i look at my about phone, it still says 2.3.9 (i am 99+% sure this is just about the build.prop from what i understand). any easy way to do this? or hard? im good with adb/shell/etc. thanks a TON in advance.