Spain was one of the first countries to start to lay down laws relating to old non-registered pay-as-you-go SIM cards for anti-terrorism reasons i.e. you MUST tell the authorities your name and address and get a new SIM if you had one of the old anonymous ones. Following on from this "mobile legality" theme, news this week bubbles of Sybase subsidiary company Sybase 365 working with Spanish mobile operator Yoigo. The two firms have joined forces to offer registered SMS, a new service allowing companies to send customers confirmation text messages with the same legal standing as registered mail. According to Sybase, "Officially certified by the Spanish Real Casa de la Moneda (The Royal Mint of Spain) the Sybase 365 and Yoigo service recognises an SMS confirmation as legal proof of delivery of important documents and information. These certificates can then be used as evidence in judicial proceedings in Spain for enterprises wishing to demonstrate correspondence with their customers. This will enable companies and their customers to resolve disputes in a timely manner, avoiding the cost of court proceedings." With registered SMS, financial institutions, utility companies and enterprises will be able to use SMS where previously they would have used registered mail. Developers working to build in legally approved services into mobile (or desktop for that matter) applications should perhaps take note of Sybase 365's suggestion that an SMS provides a number of advantages over registered mail including five times better response rate over traditional mail and is read 288 times faster than email. "No other communication medium has the ability to reach more people than SMS, said Howard Stevens, senior vice president, global telco and international operations, Sybase 365. "Consumer acceptance and enterprise adoption of the mobile channel is fuelling the growth in volume, availability and sophistication of mobile services and the registered SMS services we're launching confirms this trend."