Palm Inc’s woes continue to multiply. It appears that Radio Shack is discontinuing sales of both the Palm Pre and Pixi smartphones. While neither Palm nor Radio Shack were returning comment on the matter, evidence of the move was also reported by the Wall Street Journal.

All mention of Palm products had been removed from Radio Shack’s Web site, and a sales associated at a store in San Francisco told Wireless Week that both the Palm Pre and Pixi smartphones “appear to be discontinued.”

The loss of Radio Shack as a retail outlet, which now carries phones from every major U.S. carrier, including T-Mobile, Verizon Wireless, AT&T and Sprint, would be a blow to Palm. The Sunnyvale OEM has been fielding rumors for the past week that the company has put itself up for sale.

Possible suitors for Palm named in various reports include HTC, Lenovo, Dell, ZTE, Huawei and Nokia. Just today palm said in a filing with the SEC that Michael Abbott, senior vice president of software and services and the man who led the webOS apps platform and services development, has resigned. Palm also said in the filing that it had implemented a retention program for keeping top-ranking executives.