I just bought a Mio C520 GPS with bluetooth. It seems to have a problem on answering calls where there is a delay of about 15 to 20 seconds between answering and connection and usually during this time the caller hangs up -

It seems to be a known problem now that i have done some search. Anyone else have this product and how is it working for you.

I have the exact same issue with my BB Curve 8310 and the Mio C520. I spoke with Mio's tech support and it is a known issue and do not have any solutions at the moment.

I'm debating whether or not to return the Mio as the C320 is the same as the C520 without the bluetooth and is $100 cheaper.

I have the 520 as well and tried it out with my Pearl. While it's a nice GPS overall, its bluetooth is useless. Even when it works the sound quality is unbearable.