Actually, the supply will decrease because of lost wallets.
True, but the effects of lost money will be negligible.
Diversify the traffic monopolated by Mt. Grox.
Make Bitcoin easier to install and download (2gb wallet at 50kbs really sucks.) <---- Put this in a torrent file!
Debit/Credit Cards. (Make a deal with those Cash 4 Cards, Check Cashing places? They wouldn't mind the extra business to compete with major companies like Visa/Mastercard.
Putting the block chain in a torrent file is a big security risk. First they would have to re-design the client so that it would verify the entire chain after being downloaded. But I agree, it took me days to get the entire chain.
you can speed up the initial sync by downloading the blockchain from
http://eu1.bitcoincharts.com/blockchain/
see https://en.bitcoin.it/wiki/FAQ#How_long_does_.22synchronizing.22_take_when_the_bitcoin_client_is_first_installed.3F_What_is_it_doing.3F
I know that's an option, but