As of Mon July 16th 2012, there's a limited time offer of $69.99 (reg $174.99) with a $25 refill card for the prepaid Sonic "4G" Mobile Hotspot at the T-Mobile online store:
Even though I'd already just ordered a $29.99 refurb'd Jet 2.0 USB stick last week, I couldn't pass up this offer. IMHO the Sonic is a more flexible and more attractive device. However it's puzzling that the Sonic's online product page lists these supported bands...
UMTS: AWS 1700/2100 (Band IV); 2100 (Band I); 850 (Band V) MHz
...while the online Tech Support page lists support for:
3G/4G: AWS 1700/2100 (Band IV); UMTS 2100 (Band I); 850 (Band V); 900 (Band VIII); PCS 1900 (Band II) MHz
Which one is correct? Shouldn't band support be uniform for postpaid and prepaid? When T-Mobile re-farms its spectrum, then wouldn't support for PCS 1900 denote capability for HSPA+ while AWS 1700/2100 gets re-farmed to LTE?
Glad to be off contract since 2010...