This was a topic I had researched some time ago for another purpose. Basically, the game cameras don't have enough resolution for the most part, to use in prosecution, if that is your aim, so I'd test first and ask that kind of question of the manufacturer. There are several products that pop up in the RV security space that would probably help, but be prepared to spend a little coin - about half a good sized Mac Book Pro or so. I'm currently evaluating a solution in this market that says it can send videos from each camera and conserves battery by only turning on the cameras when someone is in range of a motion sensor. You may way to search for RV security systems and look for those with 3g or similar capability. There are only a couple. If you are handy with electronics, you can get an arduino board that has support for 3g, cameras, and what not, but that would require development time - again cost. You can also get some units out of china similar to the game cameras that have support for cellular, but personally, I'm not that brave.

I've had fairly good luck with Windows offline folders; however, there are a few gotchas. Things to watch for include microsoft jet based databases and other multiuser or transactional type files. In addition, sometimes Windows will forget the connection is present and you have to remap the drive at which point it remembers the offline status. I've been using this for well over 3 years at different organizations and haven't ever had a major failure, just a glitch here and there where I had to remap a drive.

Regarding the file types, you can configure which types are allowed and not allowed in an offline folder setup via GPO. By default I think it excludes MDB, Microsoft Project, and a couple others.

There was also a power toy released by Microsoft at some point called folder sync or something like that. It worked quite well.

Since you are looking at Codafs and the like though, I suspect you are UNIX based and may not have this option.

I've tried something called Groove, which was a peer to peer application and absolutely hated it. It required too much effort on the users' part to get something done.

There is also something called "eroom" that I used to use. I think it was based on Documentum or whatever it was called then. It had a web based interface and an offline sync capability. It was quite straight forward, but the main area to watch for was versioning of files.

IMHO, technology like this should be seamless and behind the scenes, which is why I prefer offline folders, but hopefully the above comments will give you a bit of a flavor for some other options.