Hi, Just picked up a Dell Streak today on O2 on the data only tariff, I already have an iPhone and this thing would be way to big to use as a phone.
It is an excellent piece of kit so far! I do have a few gripes though, one of them being the battery life is very poor but that is to be expected on something like this.
The screen is simply amazing, on par with iPhone in terms of sensitivity and smoothness. The keyboard is a dream to type on in landscape. It is however a shame they didn't release it with V2.1 to support multi touch but 2.2 on the way in the near future so that's not so much of a problem.
The main thing I will be using the device for is Internet browsing and media. I've downloaded the skyfire beta and its speed is fantastic.
Another gripe would be lack of customisation in terms of first party themes. I've seen HTC and Samsung do amazing things with skinning android and making it look fantastic (I work in the mobile phone industry and was blown away by the Desire and Nexus One in terms of that) Again it is maybe something that Dell well pick up in the future and there is always the Android market place.
Another plus for me would be that I encode a lot of videos for my iPhone, I put a few on the streak and they play without a hiccup and look fantastic. Saved me alot of time re-encoding videos.
Another fantastic feature for me would be the music player Dell have installed on the phone. It's very swish and reminds me of very basic iTunes UI which isnt a bad thing at all.
I would not however, recommend this a phone as it is far too big and you would just look daft. To summarize I love this tablet so far and look forward to future updates