To edit AVCHD2 (1920x1080 60p at 28mbps) you need Avid Studio (separate product) or the latest competing products that specifically state they support that format.  I suspect that Pinnacle Studio converts it to 1920x1080 60i or 1280x720 30p.

Existing Blu-ray players will not support the AVCHD2 video.  Some people allege there are (or should be) firmware updates, but I've seen none.  Some brand new Blu-ray players may support the format, but they don't make this clear in their advertised specs.  The latest version of Picture Motion Browser that accompanies Sony videocams will export to AVCHD2 discs.  I don't think Panasonic HD Writer can do anything but convert the stuff to 60i.

Until you find a way to edit and share the 60p video, I'd strongly suggest shooting most stuff in "old fashioned" 1920x1080 60i format at 17mbps.  The quality is pretty good and it is fully compatible with existing Blu-ray players.   The speed tool in Pinnacle Studio allows you to slow it down too.  The result with 60i is almost the same as with 60p, unless you shoot the video under very strong light and the videocam shutter speed is high.  Otherwise, the images will be relatively soft using either form.

Postpone shooting much 60p video for six months or so, and you may spare headaches and lose little or nothing, particularly if you are in the N. hemisphere and winter light is apt to be dim.   Even if more 60p support appears in 2012, you may still find 60i to be more convenient to share with folks who don't have the latest gizmos or firmware.