I expected something quite spectacular from ASICS.
Exactly. Until you notice it on the following chart, this additional hashing could just as easily be coming from existing miners that are picking up the GPUs sold by other miners who are liquidating their GPUS to buy FPGAs (or to place orders for ASICs).
That's what doesn't make sense. Now is the worst time to pick up GPUs. Everyone knows about FPGAs and everyone should know about the 50 -> 25 split coming up and should know that ASICs are coming out that will put their GPUs to shame. So a big July-August rush to add to their rigs seems extremely unlikely. It's really the worst time to expand a rig and yet there's the graph.
Now I guess more people hearing about BTC who
already own a radeon card and simply start mining is very reasonable but still, that's an awfully big increase!
On the other side of things, the jump in August was about 6000GH/s. That's 1714 Jalapenos, which would be hard to realistically run. I'd say a company like that could easily come up with 25 testing PCs in 1 room that 1 person could operate alone for testing/mining with sufficient air conditioning, etc. Prices get nuts with bigger hubs but you can pick up 8-port powered USB hubs and some power strips pretty cheap. Most boards don't start having issues until you plug in more than 4 USB connections. Usually cheaper boards have issues using all 14 (H77 chipset has that many I think). So at 4 each, that'd be 800 units at once. Keep in mind, they make A LOT bigger devices than the Jalapenos but if they're all Jalapenos, that's 2800 GH/s. That'd explain half the increase. Now if you were to take away 2800GH/s from that graph, you get a steady increase at a more similar rate to the many months before it.
Btw, random thing: BFL said they will not sell enough units to 1 individual customer if they suspect they're attempting to >50% attack them. It's not a 51% attack, as 50.00000001% would do it btw so everyone stop saying that, lol. Anyway, given the distributed 7000+ pre-orders, they'd need to make about 1.2x more and sell them all to 1 person lol. That's over 10,000 of their smallest units. So yeah, no worries there. The only people that really >50% it is themselves. But it's stupid for anyone to try that because as soon as you submit bad data to transfer a million BTC to yourself then verify the data yourself with your epic hashing cluster, thousands of people wonder where their BTC just went, everyone panics sells off theirs since the whole system is broken, and they're holding BTC worth $0.01 lol. Good luck selling it, lol. Oh, and without the ability to determine ownership, they probably would steal MTGox's BTC bank in the first place which would instantly shut them down. So double good luck selling their stolen BTC then, lol. An attack like that would be really, really pointless unless someone simply wanted to shut down the system, not actually make money from the attack. I have a feeling BFL would be very unhappy if BTC failed so no, I don't think they'll try that