Re: Supersonic flight
I would guess we will get something like the SABRE Jet before, on a ballistic or similar travel plan. So it can leave the atmosphere, and get anywhere in 30 mins... after taxing for 3 hours and waiting in the airport for 5*.
Example of possible flight plans: http://history.nasa.gov/conghand/fig13d3.gif
*I have heard of analysis of the Concord saying while it was the quickest flight, the majority of delays customer/travellers notice is at the airport. Reducing that is more a benefit than the flight time.