McDonald's is getting lots of free publicity for its plan to provide free WiFi connections in its outlets (Free is the future for mobile computing, The editor's diary, editor.computing.co.uk), but shouldn't you wait and see if it uses WiFi as a way of pushing advertising at customers?

Worse than that, who wants to sit in a McDonald's "restaurant" using their laptops? Everyone knows McDonald's considers a customer staying more than 20 minutes as overstaying their welcome - hardly the right environment for a bit of mobile surfing.

Name withheld on request