How about some order filling options from these drone-like sites such as tradehill, mtgox, bitcoin7, etc.?
Helpful order options concerning bid / offer prices that I'd like to see and shouldn't be too hard to program:
✪ good till canceled
✪ good till certain time (end of day, etc.)
✪ all or nothing order fill option
✪ partial order fill accepted option (if not automatically offered) <-- take notice bitcoin7!
✪ approved acceptance of selling / buying within a price range
instead of at a set price (including within % of a certain price)
Make it more like my stock brokerage account, mmmk?