looks like the difficulty is gonna drop for the very first time since the creation of Bitcoins? Wht do you think might have happened?
Some collapse of the mining pools, or maybe all the CPU miners shutting down at the same time because it really is a waste of time now? (looks to me that with 100Mhash/sec you pull out more or less 1 BTC in 24 hours right now), or maybe just that some miners are quitting after they speculated enough? General loss of interest?
The difficulty has dropped before.
It's dropping this time because before it was adjusted last, someone with a massive amount of hashing power joined the network for a short time, and ramped up the difficulty. They turned off their miners though and so the network is adjusting.