Maybe its always been like this but still, let me try and explain whats happening.

So, today, July 1st. On your iPhone / Touch, your calendar app (i.e the one thats on the phone as standard, nothing you have downloaded) says 'Thursday 1st' Right?

Okay, when I go into it, say I have the 'day' selected (not list or month) at the top, where it should say 'Thursday 1st July 2010', it still says 'Wednesday 30th June 2010'

If I press 'Today' then obviously it will move to todays date and time.

Now, is this a fault or has it always been like this? Will it not update the date in 'day' mode or should it?

The Calendar app always opens in the view and the date/month that was displayed the last time it was open. Afaik it has always been like that.

yeah i just opened mine and it opened on 4th September which I remember looking at a couple of days ago.

Thanks for the info on this.