Why would the FS-100 not do 720/24pn or 720/30pn
 

I read an article that it would not do these two formats, how sad if this is true. Would it be a software upgrade to fix it.

My understanding is that 720pn will not stream over firewire.

It's not that it won't stream over Firewire... It's an issue of the DVCPROHD codec, or at least that's the way I understood it. Standard frame rates for 720p DVCPROHD are 30fps and 60fps. Therefore, you can only record 24p over one of those rates via firewire (or to a DVCPROHD deck). If you want 24pn or other native rates besides 30/60, you must record to P2.

At least until the Cineporter is released, which I understand to mimic a p2 card

Yep. That's why the Cineporter connects via a P2 card slot rather than via firewire. It allows recording to HDD the same as you would record to a P2 card. So you get all the frame rate options, proper MXF files and all your metadata.

now THIS is whats intriguing...

lets hope the wait doesnt dissapoint...