But yeah, alt coins.
This is exactly right. but even since I posted this thread the total G/hash has gone up another 2500!!
But Why would you not expect the difficultly to continue to rise as the recent rate? There really is not much explanation except for recent asic chips hitting the streets, which will only grow at a quicker rate from now on... Worst part is that BTC value is dropping as asic is showing up which seems extremely ass-backwards IMO
At the moment, there are still lots of GPU in BTC. If the difficulty rise further, then some of them will move away from BTC so the rate of total hash power rise might be lower.