Lotus Notes is criminally underrated. I don't think folks gave credit to the replication engine. I was so stoked when Ray O was going to MS and thought he'd just kill it there, and I prayed bring Lotus like replication to sharepoint. I was not a huge notes fan early on as the UI was off-putting (I didn't know the UI was written to be cross platform - now it makes sense). But the functionality it provided and the millions of notes DBs written, is truly amazing and it has a huge place of respect in my book. Ray is tops in my book.