6 Months Ago, GameSpot says (in Killzone 2 DLC, MvC2 demo lead PSN update) As previously revealed, the long-awaited Jane's Addiction album Nothing's Shocking is rocking MTV Games and Harmonix's rhythm title. On the PSP store, a Patapon 2 demo is now available in advance of the game's May 5 launch. PSP gamers can also pick up ...

7 Months Ago, Gamers.com says (in Sony Confirms Patapon 2 is a “Test Case” For Digital Content) Don't expect a UMD to drop out of your Patapon 2 box when picking it up on May 5. The News: After reports earlier today that the upcoming PSP game Patapon 2 would be selling at retail with a download code in place of an actual UMD in the box, ...

And Tech.co.uk says (in Sony confirms UMD-free 'test' for PSP)  UK
SCEA has confirmed that the critically acclaimed PSP game Patapon 2 will not be released on its proprietary UMD-disc format in the US, instead being released as a digital download only. Gamers who wish to buy Patapon 2 at retail will purchase a box ...