The primary problem with that cute little TV is its antenna, which will be next to worthless unless you are so close to the TV transmitting towers that you can practically see them.
The new digital TV system in the U.S. is a trade off: we get a whole lot more channels to watch, at the expense of being able to watch weak stations. With the old analog system, a weak station was watchable, just snowy. With DTV, weak stations don't show up at all. And anything you try to watch with a less-than-optimum antenna is going to be weak.
I can't tell from looking at an on-line picture of the IView, but about the only way I would expect it to work (with the new U.S. DTV system) is to connect a very good antenna to its external antenna jack, if it has one, and go through the initial scanning process to capture local DTV stations. The problem with that is, you'd lose those stations by disconnecting the antenna, and in any case, you'd have to rescan the set any time you move it to a distant location with different local stations--if you could get it to work there at all with whatever antenna you had, that is.
Regretably, DTV is not friendly to small portable sets nor to those installed in RVs and the like.
In any case, you definitely do not need a converter. The IView has the proper digital channel detector built in. You just need a for-real TV antenna, not that little whip that belongs on an FM radio.
Followup: the link below is the sample that I looked at on the Internet.