Similar to this subject, I thought this could be a very cool way to add an extra level to the game. Not only would it be a nice way to help out a friend if they needed a little extra help early on, it could be translated into a barter system more robust (and personalized) than the auctions.
Currency is a funny thing in Glitch, as it is very linear in how it works. Opening it up to interpersonal exchanges could create some truly epic scenarios. The possibility for them going sour is definitely there, but with the game still providing a steady stream of financial reward for those players who level up and complete quests, the risk is somewhat minimized. The potential for this becoming really cool and letting Glitches have jobs and exchange currency for services or harvests (creating a competitive market outside of auctions could be pretty neat).
What are your thoughts?