The iPhone has the feel of a device where they care about responsiveness but the hardware isn't up to it. Every Windows mobile phone I've seen has the feel that the software is built badly and nothing the hardware can do will help.

Wintel very much isn't "slow as ever"

You are right, I'm spoiled by fast hardware, compared to the machines of yesteryear my desktop is a joy. But a processor capable of tens of billions of operations per second compared to my human senses - nothing should take long enough that I can notice it.

When using Visio and accidentally mousing over the My Shapes menu the whole program locks up for about 10 seconds while it finds zero shapes from a network drive and then doesn't cache the result. While using VMWare vSphere client, almost every click, view change, menu popup, any action at all takes a blinking and a flickering and a delay. Explorer happily does slow folder and drive refreshes and ignores right click popup menu requests on many occasions. IE 8 opening a new tab is a laggy occasion. SQL Server Management Studio 2008 is a blinkenflicker fest all over.

Here and there, slow calls are in UI threads, network requests are blocking, network requests are slow out of all proportion with the amount of data that needs to be transferred due to odd protocols and many layers, crunching data is not offloaded onto other cores, frequent results aren't cached, the spinny circle cursor and the "program is not responding whoops it's back now" affair happen all too often.

I can see two reasons. A) it's hard. B) It's not a priority. I can forgive the iPhone because it mostly works well. I can forgive small companies writing desktop software. I can't forgive the likes of Microsoft and VMWare, because they have masses of cash and eat hard problems for breakfast, so the only conclusion is that they don't care that I get a twinge of reluctance to use their software, a frowny lemon eating face when I wade through it, when I'm drumming my fingers and using the free time to grumble about their software to my colleagues.

Fast responsive small simple software is a joy to use, I am cheered by PuTTY, Paint.NET, 7-zip, VirtualBox, VLC, AnyClient, Vim. Even Adobe deserve praise for the improvements in startup time from Adobe Reader 6 and the plugin fiasco.

VMWare vSphere client, as it fires up the coal boilers and defrosts the Java VM, whips at the tired donkey graph drawing libraries and runs all it's server queries through a dialup connection simulator, oh no. No no no.

If Apple are going to focus on speed, I'm going to focus on giving them my cash. I can feel my mental liking of the iPad converging, decision weightings on it's faults are weakening and it's pros are strengthening, a preliminary RDF field is forming to buffer my perception of the change in my bank account, the justifications are coming more and more easily to the fore.

I will only end up disappointed, apps will chug, serious web pages will lag and layout will take ages, iPhoto will arbitrarily slow while scrolling ... but by then it will be far far too late. :/