The Windows Embedded team just announced the availability of the Windows Embedded Standard 2009 Academic SKU, which is basically the full version with a timebomb of 1 year.

“With the exception of the changes required to adjust the timebomb, this version is binary identical to the rest of the Windows Embedded Standard 2009 Evaluation version, the database has all the same components and the tools are the same too. They will soon be available on MSDNAA for download”

If you are interested check out Weijuan's blog post and look out for it in your MSDN-AA subscription.