I normally post to this blog things relevant to Databases in general and Oracle in particular but once in a while it is good to go a little off topic.
In addition to Oracle Apex, which most of Oracle DBA’s have some sort of an idea about. There is a tool (or rather framework) which I prefer more to apex, it is called wavemaker. Developing and deploying web applications is even quicker in Wavemaker than Oracle apex. And it is kind of more open (since it is not tied to an Oracle database) tool.
Do have a look. It is fairly simple to use and the learning curve is flatter than Oracle Apex.