Congrationlations to me.

I made BTFuture history: First market order executed.
I like your site and wish you succuss.
Only one suggestion: make it possilbe to have orders that are extremly small for both the number of shares and bitcoin price.
This could be accompied by an account setting that would adjust the decimal accordinally so you would'nt have to
look at very small prices (i.e 10 nBTC market order).
If you get numerous people micro trading then I "predict" most of them will start trading in larger amounts.
Just a thought.
Good Luck.
The thing about your suggestion is that it is not quite possible because the way the site is currently designed and we always have to peg the payout to a fixed amount... so an extremely small amount always has to be relative to the highest possible bid because it must be a percentage. One thing that we could do is change the payout so that instead of having the max price be 1BTC, have the max price be 0.1 or even 0.01 BTC. I think 0.1BTC is more likely. Let me know what you think and I will try to change over to the current system this weekend.