Portable Applications

I'm quite into Portable Applications such as Portable Firefox, etc at the moment, and was wondering if there was a portable application (works on a USB stick which I can plug into any of my PCs and phone, which is an offline blog editor? Any suggestions

Update I've just been pointed to http://www.qumana.com/help.htm thanks Jimmy

An now www.Zoundry.com which works a treat - thanks oh lazy web

Googling has not turned up much thus far

My current portable application set looks like this
        Firefox (with the following extensions)
                Spellbound
                Bloglines
                CoComment
                FasterFox
                Yahoo Mail notifier
                Googlepedia
                Tab Mix plus
    Great News RSS Reader
    Mac 7.0 Operating System (Just for nostalgia)
    VLC Media Player
Portable Open Office

This all sits very easilly on my 2.0 G SD card