I just read this article at Pro Football Talk, and the inference was that if a team wanted Martin, he could be available for a conditional 7th rounder (2015 ? ) .
Here's the link : http://profootballtalk.nbcsports.com/2014/02/25/dolphins-want-martin-back-unless-they-dont/
Or, teams can just sit back and wait for Miami to waive him.
From my perspective, Martin definitely represents better value than most/any 7th round prospect. So, if this deal was on the table I'd be all over it. I think Martin would fit in well, and be great insurance (along with Xavier Nixon) at either tackle position and possibly guard as well.
Richie Incognito, on the other hand, could head off into the sunset and I'd be just fine with that.
Keep Building the Monster ! Go Colts !