This is more of an info post and less of a deal post (although is a deal). The SanDisk Clip Sport Plus 16GB * MP3 Player was recently released and as of now is only being sold at Best buy and has Bluetooth connection, finally making a mp3 that your son can bring to yeshiva (unless FM radio is a real issue) but has a few more features (although a few less than the ipod nano) than the old classic mp3 players.
It's currently $10 off.
http://www.bestbuy.com/site/sandisk-clip-sport-plus-16gb-bluetooth-mp3-player-black/5508200.p?skuId=5508200Edit: one big issue I realized is that I'd DOES NOT have a SD card slot.
And people are complaining of the sound quality when used with Bluetooth.