For remote users you can also choose GoGlobal (pricing is ok, basic usage very easy to configure, works with Win, Mac, Linux). Major difference to TS is that with GG you can offer a remote app without a new/second/duplicate desktop! You can even work in your office with two FM6/7/8 at the same time (one with local FM installed on your HD, the other FM window opened via GG). And with GG you can have even multiple sessions open at the same time, so basicly you can for example open 3, 4, 5, ... paraller sessions open with the same db and do e.g. some load test or any other thing where multiple sessions might be of help.
Check the web pages from GraphOn inc. They offer free test drive (might have been for 30 days).
That is an excellent way to share your FM apps to remote users (works even via telephone line)!