Just so set the scene :

- I have a iPhone 4 (Vodafone UK)

- And I have a Boingo mobile phone subscription on it (around £4/month)

I am currently sitting outside Starbucks - on my MacBook - connected to the Internet using tethering from the MacBook to the iPhone.

It looks remarkably like I can use the Boingo subscription on my iPhone to connect my MacBook to the Internet through the iPhones wireless (ie Starbucks) wifi netowrk.

Hm