For the remote play to work, you will need PS3 firmware 2.10 and PSP firmware 3.80. Currently, only some PS One titles are available for sale via the PlayStation Store but the update will allow all titles to be played on the PSP using the PS3's remote connection.
GI.biz also says the updates "lets PS3 owners play purchased PS One titles remotely from the hard drive, rather than requiring them to be downloaded to a PSP memory stick."
Sony has yet to confirm.
Source:
Gi.biz
Written by: Andre Yoskowitz @ 18 Dec 2007 18:58