Why? You'll use up your 4G data plan in 97 seconds. At least with 3G it would take a day or so to blow past your monthly data limit.

In all seriousness - yes, this is an issue, but with the divergence of 4G spectrums and the radios required to support all of them, it does make sense they don't support it yet. I'm probably gonna get the Nexus 4 anyways, as with my iPhone 4 I have 3G data and it's perfectly adequate. I'm also a heavy (not super heavy) user of data.