Don't you bet on that.
I've had my 32gb iTouch for approx 1 year. At first it was excellent using wireless and I used to be a regular on the Youtube.
Over the last 3 to 4 months it has become more and more unstable with the wireless connection. I have not changed any settings on my wireless router. I'm the same distance I used to be from the router.
The wireless signal meter seems to go up and down without any reason why. I can browse the web using safari with the signal meter showing 1 bar or 2 bars. When it hits 3 bars it locks the connection and the itouch for quite a while... minutes sometimes.
When I eventually exit I hear an audible click through the headphones and the mute/unmute symbol appears for a split second...
Then everything is back to normal again.
Ya my neighbour has a router totally wide open and when I am at the upper most part of the house - the furthest point from my router - I use his!
But - yes - the iPod will periodically jump to his router sometimes in the middle of the house depending on the strength of his verses mine maybe?
I have to manually switch it back and really this seems to me to be random as well as possibly a function of the signal strength.
I use my iPod with a 'Go Boingo' account and all over the NE USA while traveling in airports and hotels. Works great for what it does.
JMC