You should ALWAYS be suspicious of cryptic messages like this one. In fact, that's a good reason to not be cryptic in messages you send. Spell out what you mean when messaging your friends. In a day where we are being conditioned to communicate in 140 characters or less, this IS a message that bears repeating.
There's not much out there yet about this kromked spam but I did find a description of what happens if you click the link at www.islandcrisis.net. The author says that basically nothing happened, nothing obvious that is.
Even as a mac user, I am not going to let my curiosity get the best of me. It killed the cat, you know. Just say no to kromked.net.
UPDATE: Kurt from has www.islandcrisis.net has been posting updates about this and has proposed an interesting theory about what the scheme might be. Click on over for the update.