It may be more backend features that the developers of games may take advantage of. There always was talk there would be support for games to be programmed to act differently depending on the country the console is in, the age or gender of the user etc. For example, Germany's crazy censorships may not need a separate version to be made, the game could just be programmed to remove gore if played on a console in Germany. Things like that. Could be something like that's what that support update is.

And it's very true about Sony being very active in updating their firmwares. This is the third one allready since the European launch in late March; The consoles were shipped with 1.50 but 1.60 was available allready on the evening of the launchday. Then 1.70 came out two or three weeks ago, and now 2.00 is around the corner. So what happened to 1.80 and 1.90?