Renting softbank sim cards in japan

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http://www.softbank-rental.jp/en/phones/sim3g.php

so looks like softbank has a great deal there - just 100yen a day and unlimited free incoming! great!

my only question then would be, can the moto/docomo m702iG operate on this wcdma network? ntt says "FOMA," but i think that might just be marketing gibberish for 3g wcdma...?