There's a lot of companies offering web-based IDEs with built-in terminals now. They've already started to differentiate themselves with unique features too! For example:
http://wakari.io/ - Focus: Scientific computing and analytics. They also offer a great implementation of IPython Notebook (really, the integration with Anaconda/conda is awesome). It's run by the folks at http://Continuum.io (Anaconda, conda, Numba, IOPro, Bokeh, etc).
http://www.devtable.com/ - A really slick (love the default dark theme) Web-based IDE. The GUI is really nice (minimal--the good kind) and doesn't "get in the way" like some of the competition. They also have lightning-quick deployment of your apps to GAE (the speed at which you can deploy/test your code impressed me). They also have an interesting LaTeX project option which also has instant deployment/testing. Useful because getting the LaTeX tools setup on a workstation can be a real pain (and they're SLOOOOOOW).
http://wakari.io/ - Focus: Scientific computing and analytics. They also offer a great implementation of IPython Notebook (really, the integration with Anaconda/conda is awesome). It's run by the folks at http://Continuum.io (Anaconda, conda, Numba, IOPro, Bokeh, etc).
http://www.devtable.com/ - A really slick (love the default dark theme) Web-based IDE. The GUI is really nice (minimal--the good kind) and doesn't "get in the way" like some of the competition. They also have lightning-quick deployment of your apps to GAE (the speed at which you can deploy/test your code impressed me). They also have an interesting LaTeX project option which also has instant deployment/testing. Useful because getting the LaTeX tools setup on a workstation can be a real pain (and they're SLOOOOOOW).