Hashlets are a completely different beast because there is no instant buy/sell marketplace.
It's among planned features:
http://gawminers.com/pages/hashletThis should be interesting - what will be hashlet's real value (well not real but speculative I guess).
One thing I haven't seen mentioned in this is thread is where is the exchange volume? We haven't been able to find the missing hashrate, maybe we can find the exchange volume? If the hashrate really is 250 ghs, the number of coins mined would be astronomical. They need to exchange them to bitcoins somewhere. Has cryptsy, bittrex or mintpal experienced huge volume growth since the hashlet launch?
I haven't looked at it that way but I think that most of exchange volume is not newly mined coins, besides the number of mined coins wouldn't have changed too much due to difficulty adjustments. GAW would just have a larger piece of the pie but the pie did not get larger. It's interesting though that LTC difficulty stopped rising since a couple of weeks ago.