not long ago
All MacBooks use OS X lion, which uses interfaces pioneered on the iPad. Some of the multitouch gestures on the trackpads are taken from the iPad as well.
Some come with trackpads,but that's about it.
Yes, MacBooks use lithium-ion batteries.
MacBooks are popular and widely used in Germany. (See links below)
yes all macbooks have wifi you can read about it on this page: http://www.apple.com/macbook/features.html
Yes, MacBooks use lithium-ion batteries as their power source.
macbooks
Yes.
Since the macbooks must be returned and repaired, it may take a while. They seem to release the refurbished MacBooks in batches so they are available for a day or two and then there is a gap when they are not available while they build up another batch. It is a case of checking in everyday and then ordering one quickly when they have them.
microsoft eccel
This is a relatively new type of technology. They are often called 'trackpads'.
Macbooks iPod iPhone iPad