Testing is over and this app has been released.
Get Opera, Portable Edition for USB drives here.
Description: Safe, secure, powerful and fully customizable, the Opera Web browser is faster and more secure than other browsers available on the market. Opera delivers robust security and a far-richer feature set than any other Web browser and it's free.
Opera is the Web pioneer that delivered tabbed browsing in 2000, and Opera 9.2 features lots of other great tricks for quick navigation, including Speed Dial, a quick way to put all of your favorite daily sites at your fingertips. You can also take, save and trade Notes attached to any Web site while browsing, or Create Search shortcuts from any search field on the Web. Opera 9.27 is super fast and free, secure and stable, and offers lots of great tools for Web Developers.
If you are looking for more of a Stealth Portable Opera check out OperaTor or check out Opera Portable by Kejut those sites both offer a good portable opera, I recomment OperaTor if your looking for more privacy, but you will have to sacrafice some load time for it.
Opera Portable 9.27 Development Test 2
Dowload Opera-Usb Portable 10
Development Test 1 (2008-04-19): Initial release of Opera Portable
Development Test 2 (2008-04-22)
Changed the way it writes to appdata folder
Development Test 2 (2008-04-19):
-Went back before SetOutpath because of some problems that were created.
To install Opera-Usb: Extract "Opera Portable.paf"
Then install Opera Portable to your Portable App menu
Then follow instructions in Readme.txt in App folder
To install Opera Portable:
Download Opera Usb from Opera.com
install to computer
Go to Program folder and take out "Opera" folder
Put "Opera" folder in the app directory.
That should be it.