Please, please, don't update until you are sure you are ready. I've seen devs that update on given day because that is what was promised, and it's super buggy, or there's bugs that should have been squashed if they just had a little more time. I would much rather an update a few days later than planned but much more polished than "well, I promised everyone I'd update on the 29th, never mind I had pneumonia that made 2 weeks absolutely miserable, and I know it's buggy, but given the promise..." I've been a beta tester for games before, and I would MUCH rather an update that was a few days later than promised but more polished!
Why did I get an invite to "Ashleyland"? Is Ashley making a theme park?