This from Nokia...

These new tools make web app development easier than ever. With minimal effort, you can now create great apps for recent Series 40 devices, including the expanding range of Nokia Asha devices.

The new and enhanced Xpress Web App Builder is for Series 40 development only and will replace the current app wizard tools.

If you have published Series 40 apps using app wizard, we recommend that you republish using the new Xpress Web App Builder. The new tools offer more stylish templates, social-media content, and new ways to monetize web apps – all without the need to write a single line of code. In addition, apps created with Xpress Web App Builder will be available as source code downloads that can be imported into Nokia Web Tools for further customisation.

Please find below some important dates as we transition from app wizard to the new enhanced Xpress Web App Builder:

• Starting 30 September 2012, the app wizard tool will no longer accept new registrations. Series 40 developers are encouraged to start using the new Xpress Web App Builder to create web apps.
  
• Until 31 October 2012, existing app wizard publishers can submit limited updates for existing apps. We encourage you to sign in at appwizard.nokia.com to gather images, links, descriptions, and report data for published apps, and then republish these apps using the new Xpress Web App Builder.
  
• Existing app wizard apps will continue be available in Nokia Store until the end of 2013. During the interim period, consumers will be able to download and enjoy app wizard apps as usual. Simultaneously, Nokia reserves the right to remove select app wizard apps that have not generated significant recent download volumes.

See http://xpresswebapps.nokia.com