Four of them have OMAP2420:
DoCoMo FOMA NEC N902i
DoCoMo FOMA Panasonic P902i
DoCoMo FOMA Sharp SH902i
DoCoMo FOMA Sony Ericsson SO902i
The other two continue their MBX lineage from the 901 series and use SH-Mobiles:
DoCoMo FOMA Fujitsu F902i
DoCoMo FOMA Mitsubishi D902i
Updated MBX Productization Pipeline is listed in:
http://www.beyond3d.com/forum/showthread.php?t=24993