What's App, Doc?
Judging by the people I talk to, and the number of press releases I'm getting, the use and creation of "apps" has reached some sort of tipping point.
So are they useful? Or just something people use to show off with on their Apples, Androids, Blackberries and "fondleslabs" ?
Let us know what you think in the comments below. And if you have a favourite app, or indeed if you write them yourself, we'd love to hear from you too.

I'm David Gregory, BBC Science Correspondent for the West Midlands. My first law states: "Science is the answer." There is no second law. Feel free to drop me a line:
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