Yes you are correct with the info you found. There are 3 options as for now. Option 1 is to utilize the PS3 multi OS option found under the settings list from the XMB I would suggest you install MAC OSX ... seems to work okay then you can utilize either the safari browser or Opera.
Option 2 is to find a homebrew loader, this option may brick your PS3, but that can be cleared by replacing your HD (theoretically).
Option 3 simply wait for the updates posted by Sony. Improvements are being done and eventually either a full working browser update or an option to chose the browser to use will be made.