I don't believe we really use cordless phones in the 900MHz anymore and I believe the consortiums determine which spectrums are sufficiently unused before targeting them.
Verizon and T-Mobile have some LTE spectrum in the 700MHz range for building penetration and range so I expect to see great things at the 900MHz range for lower power devices.
Verizon and T-Mobile have some LTE spectrum in the 700MHz range for building penetration and range so I expect to see great things at the 900MHz range for lower power devices.