[skystorm]

First branded phone on T-Mobile with IPv6.

Also, the HTC One S has been available on T-Mo for a few days now; it's running ICS and should thus support IPv6. Wouldn't that make it the first branded IPv6-capable phone?

Edit: As noted below, the software on the One S does indeed not support IPv6 as of now.

[wmf]

The One S may have an IPv6-hating baseband; apparently this is a very common reason why phones cannot be upgraded to support v6 in software.

[skystorm]

It seems the hardware is willing, but some proprietary software part is weak: https://groups.google.com/forum/?fromgroups#!msg/tmoipv6beta...

[gonzo]

if true, LOL!