Re:MAPI? (Score 1)

This is unlikely (especially if you are talking about a multi-platform solution). Why write RPC\MAPI code when you could go the Evolution route and write a WebDAV hook. I honestly think this road is the path to moving away from Outlook from the corporate point of view. Evolution has come a long way and I suspect the 2.0 client will be awesome...lets see some other messaging\calendaring multi-platform projects use the WebDAV hook so we have a choice (not that Evo is bad, but choices are good).