It seems like it was just last week that the iPhone geniuses at iPhone Alley brought us their version 2.1 of the iPhone-customizing software iFuntastic. Wait, it was just last week. These guys are really going at it. iFuntastic has just hit version 2.5 and now includes full file browsing support. Now you can edit system images and logos and even change system sounds and iChat-esque SMS text message balloon colors.