The current Dev tools on ADC are the ones from WWDC, and they took a few days to post after they were released on CD to the people at WWDC. I would expect that by early next week we will be able to download the 10.1 dev tools from ADC.
That said I hope they post it sooner, I have homework I need to get done this weekend that requires the dev tools, and if all goes well I will get the update from CompUSA or Fry's this saturday. Would suck if I had to wait to update untill after i did my homework (although it would give me a reason to finish it quicker )
the lack of developer tools is stopping me from adopting 10.1. I use 10.0.4 for MySQL, PHP and WO development. No way. It's funny, we've been waiting for so long and now we are stuck with a useless CD.
On the other hand, what is really preventing me from using 10.x on all the machines is the lack of Flash, Director and Photoshop as native apps.