I just gave this a try using my iPod and adding liveblog entries using Safari. Worked beautifully despite having to scroll and zoom a bit for each new entry. This could be extremely useful for when you want to update a liveblog from an iPhone at least. If there was a way to format it better for mobile use I'd be a happy camper. Maybe something to consider as a feature request. :-D It's a shame these buttons don't show up in the official (and rather useless) WordPress app.