I found a fifth poll from the last three weeks or so for Iowa even, still - a
Zogby one - but never mind.
Much the same anyway - Romney in first but only very narrowly, and at just 19%, with McCain and Giuliani both at 18%. Fred Thompson in second tier at 9%, and Tommy Thompson as the largest of the little ones at 4%.
What about
New Hampshire? Much fewer polls from there. Just two in the last three weeks:
Again they're not in agreement, at all. Zogby had Romney far ahead, at 35% vs 19% for the other two frontrunners; while ARG now has McCain far ahead, at 30% versus 23% for Romney and 21% for Giuliani.
Either way bad news for Giuliani.

(Click to enlarge etc)
Interesting is that the smaller candidates do much worse here than in Iowa.
In Iowa, if you take all five of the polls I mentioned above, the three frontrunners pool no more than 58%, with 16% for the dont-knows, and 27% for the smaller candidates.
In New Hampshire, the three frontrunners alone take 74%, and with 14% for the dont-knows that leaves just 14% for the smaller candidates - and most of that is Fred Thompson or Gingrich. The rest is stuck under 2%.
Zogby again splits up distinct data for Independents likely to vote in the Republican primary. They again overwhelmingly go for McCain, with Romney a distant second.
Just for curiosity's sake, let me just go to the page on the P2008 website that keeps track of how often and how long the different Republican candidates
visit New Hampshire.
Striking detail: By far the candidate who's been most up to New Hampshire to campaign is Mitt Romney. He's been there about twice as much as McCain and three times as much as Giuliani.
Same as with Iowa, then! Seems to confirm that Romney is rising in the polls simply thanks to patient and consistent grassroots work. Why is Giuliani not going out more often?
Mind you, the second tier of New Hampshire visitors consists of Huckabee and Tancredo alongside McCain, and it doesnt seem to have done them any good. Striking is that Ron Paul was only there once - even though NH is a bastion of libertarians, who have been consciously trying to "settle" the state, and Paul has collected much of his campaign money from them.