I Think it would be great to see how to create android applications

Create a simple application using JRuby and deploy to Glassfish using the Warbler gem.

How to create a real-time rails app with xmpp/jabber or Juggernaut? (maybe a chat example :-)

Create a simple app for Facebook using facebooker or a like...

Digging into the source code of ruby on rails

Create a Home Budget application from scratch, including an iPhone interface. This would be completed over a series of screencasts and would cover many of the common challenges Rails developers face.

It would be great to understand the process of generating a fully functional Rails application from a wire-frame image. Thus, the goal here is to hit all the essential areas of web development from the front-end to the back-end.

Covering the design of an API as well as implementation and testing. Bonus points for using Rack middleware or Rails metal.

I would like to see an episode on integrating rails application with cassandra db. Also it would be great to see there some ways to search in this database (I know that cassandra doesn't support search, but indexing engine can help with that. There is Lucandra project and it should help)

I think Rails is such a great system and apps can be built so fast that tests are sometimes left behind. I am struggling to get anything other than unit tests working and I already have thousands of lines of code. I could really use the help with testing.

Hi, I appreciate a screencast about this new interesting Framework build upon Sinatra!!! http://github.com/padrino/padrino-framework

It would be great to see an example of a calendar application.

Demonstrate how to code wizards in rails by implementing a multi-step checkout process or a multi-step sign-up process. For the sign-up example, integration with 'devise' would be ideal.

Demonstrate the best way to build notification system using Ajax PUSH/Comet with Faye or Juggernaut. Not just only chat apps, it could be notify specific client or all client. Thanks

It would be awesome to see a simple grid recipe. Ajax would be a plus, but something simple with pagination would be awesome.

a multilingual example rails app (EN/ES/DE for example)

Rails app ass data service for communicating with gadgets in another site

Create more tutorials about Grails please!

Demonstrate how to use Apache ActiveMQ with Rails and create a listener and a broadcaster.