Camera - a fragile thing, prone to all sorts of harmful influences. If you want it served cobalt ontario copyright for a long time then pay attention to the mechanical structure. If the shell metal, then at least not crack if dropped. There are models designed to operate in extreme conditions. Traditionally Pentax pays great attention to protect their equipment from the adverse effects of the environment.
On top of this wireless fun your iPad comes with Bluetooth EDR ahh yes rubs of chin all round what the heck is all this stuff anyway the upshot of which lithium facts is that you can connect it to accessories like wireless headsets headphones or the Apple Wireless Keyboard if that happens to particularly float your boat.
The lithium-ion battery is light years ahead of the earlier batteries and considerably better than the Nickel-cadmium (Ni-Cd) or the nickel-metal hydride (Ni-MH) batteries which are still being used. These batteries are less expensive but the Li-ion batteries are far superior in three ways.
For this cordless drill comparison I decided that the chemical properties weren't important to me. What mattered was why an Li-ion battery may be better than a nicad battery. My drill comparison came up with 2 major reasons. Li-ion batteries weight is about half that of a nicad battery. In other words when you hold a 18 volt lithium bettery stock ion powered cordless drill driver over your head you will notice a major difference in the weight over that of a 18 volt nicad drill driver.
The iPad 64gb comes with built in 802.11n (whatever the heck that means right?) and it will automatically, scour, assimilate and hook into the fastest wireless networks available. Clever little thing that it is.
For jobs where the batteries are required to be light weight as well as being reusable, then lithium batteries are ideal. But if a battery is needed to be very reliable or to remain unused for a long time then they might not be the right batteries for it.