PDA's and Lotus Notes

All Palm and Palm compatible can work with notes.
If you have notes R5 then you have to buy a conduit software. Your best bet is Puma's intellisync - but you need to get the current version which supports R5. This can be a bit tricky if you buy it from someone other than puma (and even if you do buy it from puma, download rather than having them ship it to you) TRUST ME.

Lotus also sells Easy Sync which works well, just a little slower.

Both will sync the FIVE major Palm apps - calendar, address, to do, notes and email. Of course with email you get your inbox and no attachments. This is more than acceptable for most people. The only major drawback that I can find is that you can't sync to Notes only multiple computers - it will double entries and gets very messy very fast.

Lotus also has mobile notes in beta if you are trying to sync a Notes or Domino app.