BlackBerry's Curve gets a "sunset" rust-color treatment, in the 8320 version available from T-Mobile from today. It's the standard 2-megapixel cam, Wi-Fi and quad-band phone, but in this case it's enabled for unlimited HotSpot Calling from T-Mobile hot-spots and Wi-Fi networks, including seamless hand-off to GSM if you leave the Wi-Fi signal area. It's at selected T-Mobile stores and online for $150 with a two-year contract. [BGR]
I just bought a titaqnioum Curve from T-Mobile and it is enabled for unlimited WiFi calling, even though the guy in the store and all the paperwork in the box says I need to pay extra for it.
Tested it by turning off the radio and making a call on my WiFi network.