Who was the default page to begin with, Yahoo? If so, POOR YAHOO can't catch a break. I hope it wasn't, as really, Yahoo can't be taking any more flack than it is now.
I think the default is some really crappy search engine made by Verizon. For example, if I type in CELL PHONE (or something similar), I would only get like 4 web page results and 435 image results.