This thread is for PS3 users to request RBN songs already released on Xbox for PS3.
The prior request thread (http://www.rockband.com/forums/showthread.php?t=184779) was very long and getting unwieldy. Here's a new one. A few guidelines (stolen shamelessly from tepidshark's original post):
1. Like the Request a Song function on the website, just because you request something does not guarantee it will happen. Submitting something to this thread is more of a suggestion then a demand.
2. Because Rock Band Network is built on Microsoft's XNA tools, all songs submitted to Rock Band Network have at least a 30 day exclusive period on the 360 (though it could be even longer than 30 days as well). Thus, you will never see a song arrive on other consoles day and date with the 360 Version.
3. Only RBN 2.0 songs are eligible for consideration (see here for an explanation of why RBN 1 songs aren't eligible). This is everything released from March 15 and on. If you prefer to think of it in terms of songs, the first eligible song is "Blue (Da Ba Dee)", which has already come to PS3.
Mods, please feel free to take over this post and modify/update as appropriate.