Hey there,
I'm lextrical and although I don't specifically consider myself to be a chiptune artist, I do use a lot of Nanoloop, Nitrotracker and other DS tools in my work. I have an ongoing project - www.magicmusicbeans.co.uk - where I post a new piece of music every day along with some form of visual distraction. You can find the Nanoloop and Nitrotrcker tracks from the category cloud.
If you are interested, my album work can be found at www.lextrical.bandcamp.com and www.datapuddle.bandcamp.com - lots more chiptune elements going on in those too.
You can follow the music beans at www.twitter.com/lextrical
Cheers
lextrical