Not putting this up here because I want to be obedient to the new changes to the DMCA law, but just because I saw it a 2 nights ago, was like...wow, way to go Sony.
If you have shared your dev_flash[x] with anyone else, or you were thinking of sharing it AND you have you PSN set to "remember my password", your dumps will contain your PSN ID and password in plain text.
Of course these this file would be terribly difficult to access otherwise (at least without physically having your system in the hands of a skilled dev). If anyone wants to find that file and enlighten everyone as to what it is, do so, or by request I can find out... but right now, I just want to chill.
(PS Jailbreak, PS Groove, PS Freedom, PS Liberator... so many alternatives )