When visiting Donetsk on Tuesday 30th May, President Yushchenko, at a press conference, stated, "The law provides 30 days from the first sitting of the Verkhovna Rada for a coalition to be formed. So on the 29th day I will pose the question to the forces which are forming the coalition. At the moment they [their discussions?] are solely in the constitutional field." He added, "I am convinced that we all understand that the matter of a coalition of orange forces, which would have a majority of [only] 17, is delicate and brittle."
Yushchenko's recent assertive declarations, will also complicate and delay formation of any coalition. In particular, democratic coalition partner Oleksandr Moroz won't be too happy by some of the President's ideas on the Constitution - he was always keen on reform; and there is not much there to indicate that the President is more amenable to Yuliya Tymoshenko becoming PM.
Looks like it's going to go 'to the wire'.