Well, the walkthrough is up guys!
Here’s what Eric Lempel had to say:
Hi everyone! We know you’re all patiently waiting for the next PS3 firmware update, v2.40, which includes XMB access in-game and Trophy support. The good news is that it’s coming soon, and you can now see how accessing the XMB from in-game will work in this video demo.
Shortly, we’ll be posting another video here on the PlayStation.Blog that shows the Trophy feature in action for the first time. At that time we’ll provide even more details on how firmware v2.40 will enhance your PLAYSTATION 3 experience.