so a unity government is of no use at this time unless Hamas and other factions accept the Quartet's conditions. There's just no way around this basic requirement. The bottom line is that there can't be a Palestinian state based more or less on the 1967 cease-fire lines, without accepting the State of Israel as its neighbour. Once again, this was the prerequisite since 1947 and 1967 after the wars.
At least 13 killed in bomb explosion suburb of Baghdad (Reuters)
from the article: Hamas: Palestinians won't form interim government before elections