People, let's calm down a bit, OK? We're talking about two different things here: general "developer edition" availability and general "consumer edition" availability.
What hopefully is going to be sold beginning late this month is the "developer edition", which is a barebones board, without ANY extras. You'll have to solder the non-standard I/O leads by hand (it already ships with HDMI, USB, Ethernet, Coax and 3.5mm, it will be fully functional out of the box, you only need those leads to connect to other devices, like serial buses, to control other peripherals), and you won't receive the SD card containing the OS, a power adapter or even a case. Just the board, period, you're expected to source your own I/O leads, SD card and power supply, which you may or may not already have. That's the reason the first version will be targeted at developers, you're expected to do most of the grunt work.
This article seems to clarify what most of the people hanging around the RasPi forums already knew about: the first "developer edition" (let's call it that way) batches are NOT targeted to schools and end users, though they may buy them if they so wish. From what I've read from Liz and others in the Foundation in the past, this seems to have been the general idea since the start.
I also remember reading that a "user-friendly" (meaning, with a case, power supply, maybe even I/O leads) was expected "later", and that one would be the one targeted at schools and general public.
I might be dead wrong here, but I REALLY don't think the RaspberryPi Foundation will prevent anyone wanting to buy a board from the first batches to do so...