We got this from Crazy Coder (crazycoder):

I have found a way to enable the flash player and wma play back without the use of the WIFI internet. I have edited the registery files so that that flash player and wma play back are enabled.
Instructions
* unzip the file and put the contents in the root of mem stick folder into the root of your memory stick
* go to the photo folder and scroll down to the fonthack folder and press start
* once the program has started press circle and wait 30 seconds then press the home button
* you should now have flash player and wma playback enabled
* Caution - this has only been tested on 2.80, and is only for 2.70 to 2.80 because of the flash player
I have made 2 zip files, 1 for people who want or have custom fonts and 1 for people who dont have a custom font or dont want a custom font.

Part of that needs to be repeated: this has only been tested on 2.80. If you have other concerns, check out the readme file that comes with the ZIP or head on over to our forum to discuss it.