Has anyone actually got their N800 working with a phone using the 3 service? I can't get mine to work with my Sony Ericsson k800i. My iBook and TomTom 710 both work with it (with some intermittent connection issues) but the N800 doesn't have any joy at all.
How can I see the PPP logs, so I can figure out what might be going wrong? I've seen others refer to theirs in bugzilla on maemo.org, but can't find a log, or discover how to ensure that one is created.

I've tried APN of three.co.uk, and user/pass set to guest/guest or <none>/<none> and a dial number of *99***1#.

I think the iBook (Mac OS X 10.4.9) uses DYN, and the TomTom 710 uses PAN.