To answer your question fully, NO. There is no current way to download and play Playstation 3 games. I'm not even sure if someone has developed a way to rip them either.
There is also no way to flash the ps3 drive, since iXtreme only does the 360 (that i know of) and hasn't released anything for the PS3. ABGX360, well, thats self-explanatory. That only works for the 360, and the producer hasn't said anything about making a version for the PS3.
Hope that helps,
H4x