He says its a political "distinction" and is NOT legal. It gives wiggle room to get back in. In other words NOT ENTIRELY TRUTHFUL! It's clear continuing to solicit funds would be a technical status with the FEC but has nothing to do with whether they publicly say the are out of the race or not.
http://firstread.msnbc.msn.com/_news/2012/04/10/11123553-with-santorum-out-what-suspending-a-campaign-means?lite
OK...I was wrong (if MSNBC is to be believed) about the “legal” status. Nevertheless, there are elements of his campaign still active in soliciting funds, and Rick remains on the ballot in any number of remaining states. He’s not actively campaigning, but nor has he shut down his operation completely, and will no doubt, still receive at least a small number of votes (just like Bachmann and Perry have been getting). Not sure why you think “suspended” is such a poor description when it has not in fact, been “ended” or “terminated”.