something that could do subversion, would be quite useful as a portable app. for programmers and for me because I have blender (appricot build) with the yo frankie files, and I want an easy way to access levels since the game has not been released yet
Let me suggest you Rapid SVN.
IIRC it's not portable, but at least it's mobile - it works, but may leave something behind.
BTW being mobile makes it easy to portabilize fully, so if sb. wants to make it - I suggest this one.
"Those people who think they know everything are a great annoyance to those of us who do." Asimov