I've bought an Acer Aspire One D270 netbook as a Cristmass Gift for my wife. Now I'm not sure which version of Ubuntu will work best: the new 12.10 or the LTS 12.04?
Thanks in advance.
First install 12.04 LTS ..
This will be good for the next 2-3 years, without any issues.
If you also want to try 12.10, and 13.04 (in a few months), and then 13.10 (later next year) you can.
But, if your target audience (your wife) just wants to use a computer, they may not want you mucking with it every six months.
You could also try (and not initially install) 12.10 (and 13.04), to see if there are any new must have features. Examples in future may include major 'improvements' to the user interface, better multi-touch support, etc.
If might be better to have a second netbook for you to 'play' on ..