This Way Up for Saturday 20 February 2010
Spam messages sent to cellphones are on the rise. Keith Manch of the Department of Internal Affairs and Paul Brislen of Vodafone on the size of the spam text problem in New Zealand, and what mobile users can do about it.
The sharks sending texts you really do want to get! Shark expert Barry Bruce is setting up a real-time shark detection system relying on tracking tags and text messaging in Australia.
Preparing food in space is a real challenge. Greg Vogt's a veteran of the US space programme who's just written a cookbook to help you make space food at home.
Bill Thompson beams in with the latest from the Mobile World Congress in Barcelona, plus why cyber-protesters are targetting some Australian government websites.
In the US, the Community Supported Agriculture movement is expanding to include fish. Plus kosher food sales to the non-Jewish community are on the rise. So what's driving demand? Sarah di Gregorio reports.
We visit commercial mushroom grower Clive Thompson of Parkvale Mushrooms in the Wairarapa.