I've been using Endomondo on my HTC Wildlife android phone. (If none of that made sense to you I'd stop reading now!) Last few times it hasn't even tracked me out of the garden. In the past I found that as long as I had a decent GPS connection to start with it would track for the rest of the run but seems to be playing up.
I have had my phone in the pocket of a Hilly hi-viz gilet instead of my shorts but I wouldn't have thought that made a differnece.
Anyone else having problems?