If anyone hasn't noticed if you've checked wikipedia, a LP is scheduled to release on Tuesday, October 07, 2008 according to cduniverse.com. So the single is being released just not as a 12" vynl. Hopefully the single does well, and hits the top 10 on the Billboard Hot 100, because this song is hot, it's one of the best off the album. I don't know why she took so long to release it.

Here's proof that 'Migrate' is being released as an LP on October 7th:
http://www.cduniverse.com/productinfo.asp?PID=7756746&style=music&frm=lk_RedRover&siteid=onmeta7-20