on 5/19/2012, Snidely supposed :
Falcon 9 launch of Dragon capsule delayed a minimum of 3 days after chamber
pressure issues at T - 1/2 sec.

If the in-flight testing sequence isn't changed, and the catch-up orbit isn't
faster, that means a 3-day delay for arrival at ISS (to state the obvious).

Today's launch window was approx 1 min; I haven't heard if Tuesday's will be
any different; I seem to remember 5 minute windows for some of the Shuttle's
rendezvous flights, but I'm not sure what the most flexible orbital dynamics
constraint for SpaceX is.

See
http://spaceflightnow.com/falcon9/003/status.html
of course.

/dps

--
Who, me? And what lacuna?