Still running

I am now on week 6 of the program and I am still running three times a week. The first week was run 1 minute and walk one minute seven times, week two doubled it too run two walk one  seven times week three was predictably run three walk one seven times. In week four the time started to rise with run five walk two but now only five times week and this week its run eight and walk 2 but only three times.  So far I have found it all quite easy but the step up to eight minutes has been a little tough especially as I have been running four repetitions and not the suggested three. The real challenge comes this week as I am on the road all week in the US and I need to find time in a busy schedule for running, I have invested in a GPS based free app Endomondo which overlays my run on a map and the poseur in me wants a run down the beach in Hawaii and Los Angeles so there is some incentive.