Today at 10AM PT, iOS 4.3 will publicly be available for download. You’ll be able to visit iTunes and get the latest iteration of the Apple mobile iOS, which will include plenty of fixes, features and fun. Additionally, there’s been a lot of talk surrounding Apple’s personal hotspot feature, specifically it’s capability of only supporting 3 wireless connections (as opposed to 5 like many other devices). Well, rumor has it that it is being left to the carrier to decide. If a carrier requests it, five devices will be supported, but by default, it’s three.