Yes, the first schoolies have been caught along the RI shoreline. It's sparse numbers, a trickle right now, but I suspect the action will turn hot and heavy within the next week or two. In past years that time period from April 15 to April 20 has been when the floodgates have opened and big numbers of migrating fish come ashore.
For hotspots, look in the coastal ponds, along the walls and breachways of the south shore, and the river systems and shallow bays within Narragansett Bay. If you are looking for more details about spring schoolie fishing, check out my article in the latest issue of The Fisherman magazine (April 8, 2010). The article is titled "Grubbing for Spring Schoolies".