Garmin MapSource

Just wondering if any of you guys have a Garmin GPS and if you've tried the new MapSource software for Mac? I'm especially curious if the 'Tide Point' add-on is available. I've been waiting patiently for a Mac compatible MapSource product and now that it's available I'm considering upgrading my Map60CS to a Map60CSx. I've kept my pc around for this reason only so if the new software works well, the pc is gone! It's my understanding that the 'MapSource City Navigator for Mac' won't run on the 60CS due to it not having a memory card.

I've asked this question on one of the GPS forums but haven't gotten a response; most of those guys are running a pc.

Thanks