If you've created a mobile application, you'll want people to download it, use it and tell their friends. But how can you ensure that as many people as possible know about your app?

Today's podcast is designed to help with some of the answers. It was recorded in London at the very first App Promotion Summit earlier this year.

Mobile security specialist Lookout has arranged $55 million of strategic financing.

Investors included Deutsche Telekom and Qualcomm Ventures as well as venture capital firms Greylock Partners and Mithril Capital Management, along with current investors Accel Partners, Andreessen Horowitz, Index Ventures and Khosla Ventures.

Today's podcast starts with a gentle warning to app developers from the Office of Fair Trading.

We then move on to Amazon's new tablets, HTC's sale of its Beats Electronics stake, Twitter's emergency alerts, UK government plans to improve mobile broadband on trains, customer complaints and the growth in adult content for mobile devices.

Mark Bridge writes:

Things didn’t look so bad in the mobile industry last week. After the shock of BlackBerry’s job losses and restructuring, it seemed as though the saga could be reaching a conclusion. On Monday shareholder Fairfax Financial announced a bid to buy the company. BlackBerry’s board of directors has approved the terms of the agreement, although it’s still able to consider alternative proposals as well.

Ring-back tones offers consumers yet another way to customise their mobile phone service. Yet despite this - and the revenue opportunities that can be generated - many network operators don't provide ring-back tones.

In today's special feature we talk to Florent Stroppa of OnMobile to discover why the UK doesn't really seem to be bothered about ring-back tones... and whether the next-generation of interactive ring-back services could change this.