Acca Networks was one of the operators who applied for the lucrative Japanese 2.5GHz WiMAX spectrum last year, but lost to UQ Communications and Willcom.
As it turns out Acca did not give up on their mobile broadband dreams, but instead of deploying their own Mobile WiMAX network, they are using NTT Docomo network for only data service.
Details are (in Japanese) in Acca Mobile website, offering two types of plan with 3 available devices:
1) USB type – from Anydata
2) CF type – from Nihon Denki (NEC)
3) USB type – from Huawei