Can you really blog from a mobile handset?

I'm about to invest in my third iPhone in the next 45 days. Probably the same day they hit the market, just like I did in June 2007 and July 2008 (by the way, I just saw that the new device may very well house, among other things, a digital compass).

One of the earliest apps I downloaded for my 3G iPhone was BlogPress, one of the first blogging tools for the iPhone and iPod Touch. I thought, "how perfect; now I can blog from anywhere, anytime; while I'm waiting for an appointment or sitting on the train".

The reality is that I haven't used my Blogpress iPhone app once.

I tweet all the time from my iPhone, send text messages, and read & write emails (albeit short ones). Authoring a decent blog post, however, is an exercise that requires some focus, time and...in my opinion...a more robust set of tools at your disposal:

• Fast and accurate authentication to get at the (remotely hosted) blog itself (I will confess occasionally struggling with the login to a system (like my bank) from my iPhone, even though there's a free app for it)
• A decent screen and a keyboard - I'm an outstanding iPhone keyboarder, but I've realized that I simply don't want to type three or four paragraphs on (any) mobile handset if I don't have to
• Fast, easy access to online resources
• Cut & paste facilities to embed links into your post (yes, yes, I realize that's coming with iPhone OS 3.0)

There, I've said it. I'm an avid fan of Apple products (since 1984, when I bought my first of over twenty flavors of Macintosh over the years), and a rabid iPhone fan, but I'm acknowledging that there's certain things a mobile handset just isn't cut out for. And blogging is one of them.

Your thoughts are welcomed.