A/D sampling frequency

MarkT:
For the record my previous timing for analogRead() was with 1.5.4.

I've now installed 1.5.5 and the speed has increased dramatically (as the release notes
state), getting between 2.0us and 3.3us for analogRead() now.

Interestingly the slower case was consecutive reads of analog pin 0, whereas
reading analog pins 0 to 9 in turn was quicker... Done with an unrolled loop
of 10 consecutive analogreads.

Very nice ... May you can give an example of your unrolled loop of 10 consecutive analogRead() code?
Thank u very much.