Skipper for iPad lets you browse the web in a panel, researching info, and at the same time have an online document open in another pane, so that you can quickly write down notes without wasting time switching between tabs! Perfect for students, writers, bloggers...
Or you may want to keep a instant messenger chat open while you browse, so that you immediately see if someone contacts you! Possibilities and scenarios are endless...
You can have three visible panels if two are not enough...and you can resize them as you prefer.
On the address bar you can type an Url...or some "free text". Skipper will recognize if thats an Url it can load directly, or if it has to run a web search for that text instead.