Apple has sold more than 4 million iPhone 4S units in the past four days, more than double the initial sales of the iPhone 4 in its first three days on sale last year.

But it was not all smooth sailing for Apple as technical glitches delayed many new iPhone users from activating their iPhone 4S units on Friday. Apple also had problems with the voice assistant feature called Siri, which had trouble staying active over the weekend. Fortunately, Apple seems to have escaped the bad press that Blackberry has been plagued with recently.

News from the Blackberry Developer Conference in San Francisco sees the unveiling of the new BlackBerrry 7 phones that will run on the BBX platform which promises to connect people, devices, content and services. Also shown for the first time were some new advanced graphics, which boast advanced capabilities, including deeper integration between apps, always-on Push services, and the BBM Social Platform. The new Blackberry 7 phones will go on sale in early 2012 in the hopes of grabbing some attention away from the iPhone and Android  phones.

RIM has sold 165 million BlackBerrys through August. Apple had sold 129 million iPhones as of June, but its device has been on the market for a much shorter amount of time. We think this means more people will be carrying smart phones capable of listening to and interacting with a radio station. So this is a great time to ensure your radio station has a presence on the Blackberry, Andriod and iPhone platforms.