Saul and I went this morning. As of 6/23/07 it's nearing the end of the strawberry picking season - there are still plenty of berries to be picked, but there are also some mooshy ones and you should look under the leaves for best results. We picked two quarts in no time flat.
They also have peas for the picking - we picked a peck of podded peas pretty promptly, and right now it's a great time for pea picking.
The farm is Rowe's Produce Farm, which is in Ypsi Twp. Exit I-94, go south on Rawsonville Road to Martz Road, turn right and it's on your left 1/4 mile down clearly marked. Phone (734) 482-8538 ahead of time for conditions and hours - they were open 7am-8pm when I called. Get on their mailing list. The web site includes a photo essay of picking strawberries.
Raspberries are due in late July.