You can definitely tour with a Bike Friday Tikit. Make sure you get adequate gearing for your needs. Buy the 2 pannier front rack and touring rear rack or talk to BF about one of their suitcase trailers.
http://www.flickr.com/photos/vikappr...th/2429835791/
http://thelazyrando.wordpress.com/tag/tikit/
The Bike Friday NWT is the better choice for touring and now is available with a quick fold stem. Depending on your commute the NWT could be a great commuter bike.
http://www.flickr.com/photos/vikappr...th/5165929330/
http://thelazyrando.wordpress.com/tag/nwt/