I did a quick search and I just realize that it's difficult to find a Neos Blk-1 now, but you could still consider a Nokia SU-W8, though it's unnecessarily expensive (I always think a simple input device must be cheaper!).
I'm actually looking at the Freedom Pro Bluetooth Keyboard now. It can be found on Amazon at:
It's significantly cheaper, and would probably be nicer to type on, judging from my experience with a similar full-size wired keyboard. However, it looks as if it would be nowhere near as portable as the Freedom Pro Keyboard.
I know exactly what you mean. I'm going to wait it out. I wasn't looking to buy something until next month anyway.
Hey, not to get you worried or anything, but it would appear that Amazon (at least in the US) has sold out of their N900s; I just checked this morning, and they now are only offering it from a third party (at, unfortunately, a higher price). I guess this means that the supply of N900s is starting to dry up...
EDIT: Whoops, I screwed up! Amazon lists the n900 twice on their site -- if you choose the wrong version, you get the wrong price... They still have it available.