Fashionably late to the e-book handheld party, Borders and Kobo announced today a partnership that includes plans to develop and release both an e-reader and e-book service. Mum’s the official word on hardware, but The New York Times Bits blog is claiming there’ll be “more than one version” released, all with wireless connectivity and all sold at Borders retail locations, naturally. Unfortunately, there’s no release date or window mentioned on that front.