Can we please avoid a situation where two extension names exists that only differ in their mix of upper and lower case (e.g. 'MPC.tcz' and 'mpc.tcz').
I for one have my private extension mirror on a NTFS partition, which is obviously not case-sensitive and this would open the door for all sorts of "fun & games". Yeah that's a lame excuse, but I'm pretty sure such a "clash of names" would fool a whole range of users.