Windows 8 Dev Account for $8 - next 8 days - Dev Unlock your WP7
The Windows Blog
Windows Phone 8 is out, the tools are available, and devices are about to be released—it’s time to get coding. As an added incentive, for the next 8 days individual developers can register for a Dev Center account for just $8 (a 92 percent savings). Please note because this is a very limited time offer. You’ll be charged $99 USD or equivalent in your local currency, and we’ll refund the difference in the next 30 to 45 days. Watch for more details on Dev Center soon.
Pretty sure this is for WP7-8 and W8 stores so a pretty good deal for $8, silly about the cashback method though.
As seen here https://twitter.com/wpdev