Mark Bridge writes:

We all have guilty pleasures. One of mine is the sci-fi film Demolition Man. Sylvester Stallone is 20th-century police sergeant John Spartan, who finds himself fighting crime in 2032 alongside the delightful Lieutenant Lenina Huxley, played by Sandra Bullock.

Talkmobile, the UK virtual mobile network from The Carphone Warehouse, has launched a series of 'pay monthly' tariffs that include what's being described as "unlimited mobile internet data".

Prices start from £12 per month for a two-year minimum term contract with a free phone plus 200 inclusive minutes and 200 inclusive texts per month.

This week's edition of The Fonecast starts with an Olympic theme.

We talk about mobile phone coverage at the London 2012 games - and then move on to mobile payments for Olympic visitors. In the middle of the show you'll find a handful of takeovers, Facebook's website and some wireless patents… before we end with a newspaper being fooled by a ghostly iPhone application.

This week's podcast starts with news about mobile phones at the London 2012 Olympic Games... and ends with a newspaper being fooled by a ghostly iPhone application. In the middle you'll find mobile payments, takeovers, Facebook, wireless patents - and much more.

The Microsoft Tag 'colour barcode' is reported to have had its best month since launching in January 2009. More than 50% more tag scans took place in March 2011 than in any other month so far.

Microsoft says the number of scans per month has doubled over the past three months, while the number of users per month has increased 2.5 times in the same period.