The Docs 2 Go iPhone app maybe affordable, but its editing features are only limited to Word files. The new Quickoffice Mobile Office Suite, however, takes things further by including Excel editing as well. Complete with cut/copy/paste, redo/undo, highlighting, and a host of font customization (style, size, color, etc), this iPhone office suite will certainly help you get more done on your itsy-bitsy Apple mobile phone.

[itunes; engadget via cellphones etc]
More after the break.

You can also work in landscape mode, and also provides emailing options. However, everything starts from a computer first, not on the iPhone. With either a Mac or PC, you first need to connect to the iPhone through Wifi using a desktop client, and create a folder wherein all your mobile documents will be stored. This will appear in the iPhone in just a matter of seconds. After which, you can simply click and drag files into the folder if you wish to take it on the road with you. Likewise, thanks to automatic 2-way syncing, any new files you create on your iPhone will also appear on your computer as well.

It’s really a very capable mobile office suite for the iPhone, but be warned, this doesn’t come cheap. The Quickoffice suite for the iPhone retails for $19.99. Nonetheless, if you’re looking for a truly versatile productivity app for the iPhone that doesn’t skimp out on features, then this is the one for you.