Roxio has a page up for their MacWorld specials: http://www.roxio.com/macworld There are two Toast 8 bundles involving TiVo – one with Toast and a TiVo Glo remote for $89.99 and one with Toast, a Glo Remote, and TiVo WiFi adapter for $119.00
http://www.tivo.com/roxio is also live now – but it just redirects to the TiVoToGo page, which now covers Mac too. No sign of the software being available on TiVo.com. They link to http://www.roxio.com/go/mactivotogo.com – but that page gives a 404 currently.