DVB-H for devices without built in a TV tuner
Philips is working on a SDIO card that lets you watch DVB-H on devices that do not have a built in TV tuner:
The SDIO cards weren't much larger than a normal SD memory card, and simply need a smallish antenna attached to the top. The European version of DVB-H has a return signal - it is unlikely that DVB-H will be a free to air service, at least in Europe. As always, the US is using a different type of DVB-H that operates at a different frequency.
All the demos were run in Windows Mobile devices, so it is unclear if the SDIO cards will work on other mobile platforms or not. However, you might not need a mobile phone to make it work, as the SDIO cards should also work with many PDAs - as long as the subscription solution is flexible enough from the content providers.