Twitter: Why? What's the difference?

I got a Twitter account in 2008 because I was curious about both the user interface and the API.
I suspednded it since I wasn't actually using it, but have recently re-activated it, with some renewed interest. While many cloud apps are starting to emulate Twitter, both in the short-message concept, (Facebook's 'Wall') and the recent Google Friend Connect.
So yesterday I blew the five bucks to get Twikini, a tiny mobile client for Twitter.
Because I want to tweet all day? Hardly. I don't have and probably won't get Facebook. However, with this app, you can look at a lot of what you see on the Twitter app itself, only it's really quite concise without missing the important stuff.
Will more mobile apps show up for these online interfases? And how, ultimately, will we resolve the conflict between the two concepts: a minimalist 'mobile web' easily readable from a small screen and downloadable without all the extraneous content - and the more rich software and application interfaces and software that make up Web 2.0 technologies.
Apple and similar phones have one solution: Sell you a RIA-capable phone, provided you pay for unlimited web, which is what you need to download all the content.
However, I think the mobile web / minimalist approach really has a place that far exceeds the original technical footprint limitations.

Blog intro, what you may find here:

This may or may not get updated, but if it does, will probably contain links to tweets, feeds and other forms of virtual print on Web 2.0 / Cloud Computing / bots and other cross-platform stuff ...