Developing an app for Blackberrys is notably hard, but Blackberry have come to the rescue with Blackberry App Generator (actually developed by Mippin) which does all the hard work for you. No code required, but there is a bit of work getting logos and icons in the right size. In the app generator just specify the feeds (it works with ATOM and RSS) and the app is built for you.
There are a few hoops to go through, initially a Blackberry Vendor ID is required (free sign-up, but company documents are needed as proof) from Blackberry Vendor Portal and that takes a while. Once the app is built, it needs to be approved, which can take a few weeks. Once approval is gained, the app must be published through the vendor portal and it's put into the app stores which can take up to 24h.
Though it's a nice feature and easily allows a website with news feeds to easily convert them into an app, could it be that Blackberry is just using this to swell the number of apps in Blackberry World?
It's really a 'no brainer' for anyone with a website that has regular updates presented as a feed and wants their own app.