Update, Wednesday (Sept 1), 10PM: Note from Paul: We shipped many orders today, but there are still SO many to process and ship. Today has been crazy... I've been working nearly non-stop from 3AM to 10PM. Please understand it is going to take us some time to do them all. We're going as fast as we can (but hopefully not make mistakes by going too fast).
Today MANY people called and emailed, concerned about the "in stock" turning to "low" and then "out of stock". Please let me apologize for the confusion, as it's largely my fault. I manually changed this page to say "out of stock", when in fact we had LOTS of Teensy++ boards, but we also had LOTS of pending orders, enough that new orders might not have stock. I want this page to give you a reasonable idea of what to expect, but in doing so I caused a lot of people anxiety (that we'd suddenly run out before processing their order), and I'm truly sorry for that. Hopefully this text will help?
If you ordered near the transition, or even some time afterward, the honest truth is we simply do not know yet if your order will have stock. We will know (and so will you) when we actually get to your order, and we're going as fast as we can, but with so many orders it seems to frustratingly slow. Perhaps we could come up with a way to count (and predict bogus orders), but we're focusing on just doing them as fast as we can.
We absolutely are processing everything in the order it was received. If you have an order in and you're concerned about its status, the best option is to just hold tight see what it's status ends up being when we get it processed.
Please please please understand that calling, and even emails but particularly phone calls, does indeed slow us down. Certainly if something happens like you get an email about your bank declining the charge to your card (we only charge right before shipping your order), or if your shipping address needs a correction, then do call so we can get your order right. But please understand we just don't know if your order will have stock until we get to it and calling to ask only slows everything down. I do feel strongly that answering the phone is the right thing to do. Please try to call only if it's very urgent (eg, your order would end up wrong if we don't fix something). If you have friends or online acquaintances, please pass this message along. Fewer calls = faster orders!
Thanks for reading all this, and especially thank you for your patience as we slowly get all these orders out. I know when I'm hot to do an exciting project the last thing I want is waiting for some part. Truly we're trying to get all orders shipped out and more boards made as soon as possible.

Update, Wednesday (Sept 1), 8:50AM: We have received a higher than usual volume of orders for this item, and we're working to ship orders as quickly as possible.

This board is OUT OF STOCK. New orders for this board will be backordered. We expect to have more by mid-September. If you want one of these boards, your best bet is to place an order now.

The smaller Teensy board is expected to be backordered until November.

Actual size is 2.0 by 0.7 inch

The Teensy++ USB Development Board is a complete USB-based microcontoller development system. Only a standard Mini-B USB cable (sold separately) is needed to connect to a PC or Macintosh.

This version has solder pads for all I/O signals. The Teensy is also available with the header pins to plug directly into a solderless breadboard.

All Teensy boards are shipped assembled and fully tested.