this is my question, I'd like to install Ubuntu 10.04 LTS on a laptop equipped with Intel Core i7 processor: does Lucid kernel support the features of this cpu?
Phoronix have been monitoring the i7 series for a while now - for example, see here.
The key conclusions I've taken from reading their articles is that Ubuntu runs well on such processors - BUT (and you need to read further) - the newer Sandy Bridge graphics that come with the latest chipsets are not playing very well with Ubuntu in that the performance of the integrated graphics are not on par with Windows 7.
So, look at not just the processor, but also what type is the integrated graphics chipset.
Processors don't change much (at least from the OS point of view), and 10.04 is not that old, so you shouldn't have any problems.