I know it's not officially supported by Polar, but in a couple of newsgroups I have read about people looking into the infrared specs and handshaking of Polar HRMs as they explore the possibility of interfacing with a Palm.
While on the road, I'd love to be able to download data from my 720i to my Palm Tungsten | T - so that i don't have to bring my laptop with me.
Not so much looking for full-blown Palm OS software, but rather simply for a way to park the data on my Palm, and then later import into the PPP v. 4.0 software on my laptop from the Palm. Any ideas?