Good day mates
If some bloke decides to take this challenge and make a portable version of Bazaar for Windows, he will have my sincerest appreciation.
http://bazaar.canonical.com/en/
I'm not an expert, but I think making Bazaar portable is doable, and I would attempt to do it myself, but it just seems like a huge amount of work due to all the dependencies and shit.
Thanks in advance
Respect
Ross