Two wireless rivals may be realizing that they are stronger together than apart, according to a report by the Toronto Star Friday.

Handspring President and CEO Ed Colligan told the Star that his company -- maker of the Treo Communicator, a device which combines a Palm OS PDA with a mobile phone -- is making overtures to rival Research In Motion that would allow the Treo to support RIM's Blackberry software.

RIM has gained a sizeable foothold in the enterprise market, with companies turning to its Blackberry Enterprise Server and Blackberry e-mail devices to deliver e-mail to employees wirelessly. According to the Star, Colligan wants Handspring to license RIM's software, allowing Blackberry Enterprise Servers to deliver e-mail to its Treo devices.

He said that enterprise customers have told him that they would use the Treo if it didn't mean replacing their existing e-mail server software.

The Star also reported that RIM co-CEO Jim Balsillie acknowledged that such a partnership between the two rivals would fit with RIM's strategy, though he could not say anything definitive.