I was getting an app that was about 660Kb (about a month ago) and now the app is 1470Kb.
I've not added much code/images (the zip I upload has been pretty constant at around 360K) and I'm not using any different apis. Is there a reason for this?
Most likely it's the addition of the Media Capture API starting with version 0.9.6, which includes images for the microphone (for audio recording at all the various sizes, iPhone, iPhone retina, iPad) and is ~800KB in total.