Sony has announced that they releasing a new update (they haven’t said when) that is going to make all future game releases completely region locked. No more importing unless you own a Japanese PS3.
As for the current library of region free games, the developers are allowed to release a patch that makes them region locked, but they aren’t required too. However, if they do release such a patch, you will be forced to install the patch if you want to play while your online. So, if you’re heavy into importing and can’t afford to buy a Japanese PS3, you might want to disconnect your PS3 from the internet whenever you play your imports.
Thankfully, Japanese Game Source has a Japanese PS3, so we’re not effected too much. As a result, we’ll be able to continue bringing you reviews on Japanese releases, so you can keep coming back here if you’d like.
Update 4/2/2010: Ok, this was an April Fools joke, just in case you didn’t already guess that by now =P