Late Friday night, Apple emailed developers to tell them that more developer kits for the new Apple TV are now available. The email, which MacRumors has obtained a copy of, says that more developer kits are being made available due to "overwhelming demand."
Due to overwhelming demand, we’ve made more Apple TV Developer Kits available and you’ve been selected to receive one. Simply sign in with your developer account, agree to the terms and conditions, and submit your order by 5:00 p.m.local time on October 9, 2015.
Similar to the original wave of new Apple TV dev kits, Apple will charge developers $1 to verify billing addresses. The Apple TV will ship within 1 to 3 business days via standard shipping for free. The original wave of Apple TV dev kits had to be ordered by September 16.
The new Apple TV represents a massive overhaul of Apple's existing set-top box, coming with a brand new operating system called tvOS, a much more powerful A8 processor, 2 GB of RAM, support for a full App Store and Siri in countries where it's supported.