There is going to be a "String Quartet Tribute to Switchfoot" album being released March 8th. However, you can get this earlier through an internet pre-sale.
Check out the link at:
You can hear some song clips of some of the songs like "Meant To Live" and "Dare You to Move." As a violin player and performance major myself, I think this is really exciting and awesome that Vitamin Records would make a Switchfoot Tribute album using all strings. Check it out!!