For months there have been rumors about an upcoming upgrade to the popular Treo 600. The Treo 610 was said to be coming in March, but little evidence has surfaced. Several web sites have posted rumors but no official announcements have come out.

Shopping.com is currently listing a Treo 610 model in their database although is uses a picture of the Treo 600. It also does not include any specifications or places to purchase the Treo 610. Interestingly, it lists it as the Handspring Treo 610. Handspring was purchase by palmOne last year.

The rumors will continue until we have firm confirmation of whether or not a Treo 610 is really on the way.