After one year of indie game development I end my development cycle in summer time. I spoke recently with a marketing advisor and I was told me that I should never release something over the summer as everyone (especially in southern European countries) tends to go on holiday and not to read blogs/magazine etc..
I am not 100% sure about this as I personally would still read a tech magazine on the beach :).
Are there some statistics available on best time periods to release an iPhone game?
I am aware that many big companies tend to release games in the period between October/November but I can't afford waiting that long.