For my American readers with a mobile phone, Yahoo has started a new service called mixd which allows you to create 'texting groups', where you send a text message to Yahoo's server, and it sends it to all the group members. It's all pretty obvious, but a nice idea nevertheless.

The coolest thing I've seen recently with mobile technology is that you can use your text messaging to get Google results on your phone. Send a message to 46645 (GOOGL) and tell it what you want (e.g. Weather Ann Arbor or Price ipod nano) and it'll send you a text message right back with the info. Cool stuff! M. Kobylarz

You know, the interesting thing about that is that it didn't work with my mobile service (Virgin, which is tied to Sprint, I believe) - my text message simply went into a mysterious black void, and never came out. I liked the idea. There are also some services which will tell you prices found online for a product if you text in the UPC number, but generally speaking I expect to pay more for going to a store than shopping online, so I didn't bother seeing how they worked.