As pointed out by others, limited coverage due to handset fragmentation, and the cost of creating and distributing content (cost is obviously affected partially by fragmentation) are hurdles that an advertiser will face.

Go Test Go has approached these issues in an atypical fashion. We have created a Java MIDP 1.0, single codebase, 64k Jar file (read it runs on virtually every Java enabled phone) quiz engine that maintains visual appeal and is rich in functionality. We are concentrating on mobile learning (test preparation) applications. However, our engine, which includes easy navigation, answer or question level detailed feedback, text/graphic exhibits, scoring and analysis can also be used successfully in the presentation of trivia, personality, IQ and other general knowledge tests. Advertisers that wish to brand such content, and make it available to users globally via http://gtg.mp or http://4my.mp (a generic portal) can do so for as little as $500US per month, plus a $500 creation fee.

There are some free samples available, and I would be more than happy to push others to your for your review.

All the best.

So, make a really cool UI to some useful info that folks want and use it also as a marketing tool. Nothing wrong with that, except that, a Symbian app is very expensive to make – in the 10s of

They’re doing encapsulated content in Java Applications like newspapers, magazines, brochures, etc. I’m suscribed to Marca (Sports Newspaper) and it looks very nice and easy to use.

The problem is that the GPRS fares are very expensive, but its something that is going to get lower.

Here’s a few companies who’ve made similar apps:

http://www.surfkitchen.com
http://www.silkmobile.com
http://www.actionengine.com
http://www.amplefuture.com
http://www.sendandsee.com
http://www.maxdox.com
http://www.nellymoser.com (BillBoard etc.)