Well said seth.
You should chill you cider down for a couple of weeks before opening. The CO2 has not had a chance to go into solution.
Just like a cold beer saying carbonated longer when cold, and a warm beer erupting when opened, you want to have it chilled.
Also,
No one here has suggested forced carbonation. If you have the means, and would like to make a modest investment in equipment, forced carbonation is far better (IMHO) then natural carbonation.
Forced carbonation requires no disgorging, will never result in exploding bottles, and has no problems with clarity.
In forced carbonation, I place my finished, clear, sorbated and back sweetened cider into a cornelious keg, pump it up to 35 psi (with Co2) and chill for 2 or 3 weeks. In the end it is clear, crisp, sparkling hard cider on tap!! YUM!