But the new Bluetooth can do so much more than connect a clunky earpiece. Bluetooth 4.0 isn't just a little better than the version currently built into most mobile devices. It's massively better.Bluetooth 4.0 has an extremely low-energy feature, which means supporting gadgets can run off wristwatch batteries, or hold charges for years, rather than weeks. For example, Bluetooth 4.0 enables wireless headsets that last weeks between charges. And it means that headsets can be a fraction of the size.
Wireless iPad keyboards don't have to be charged at all for the life of the iPad, thanks to Bluetooth 4.0.
Another magic trick Bluetooth 4.0 performs is that it allows pairing and data exchange without user involvement. If the user has granted permission in advance, two Bluetooth 4.0 devices can connect and sync data without even informing the user, just by being in range.
Bluetooth 4.0 also, ironically, even simplifies the connection of Wi-Fi devices. Right now, adding a Wi-Fi gadget often requires users to hand-enter configuration information. To oversimplify, Bluetooth 4.0 enables new Wi-Fi devices to get configuration information automatically; instead of asking the user, Bluetooth 4.0 enables devices to communicate configuration information with each other. The only user involvement required is permission.
I posted this earlier, but it fell victim of the problem of people starting new threads instead of looking for existing threads. Not to be blaming any particular person. But we have 15 threads about people disappointed/underwhelmed, etc. about the new iPad. Five about the iPad getting warm, and several about backlight bleeding. What was great is seeing two threads about it being used as a hotspot...in a row. It goes with the introduction of a new product, but it can make things difficult to find information.