Like Safari on the Apple iPhone or Opera's mobile browsers, Skyfire shows you the whole web page. This will almost certainly prove too small to read on most phones, so you can select a position on the screen to zoom in on, magnifying the text to make it easier on the eye.

Using my own handset, a HTC S730 running Windows Mobile 6, I found I could browse sites such as VNUnet.com (see screenshot) and see the animated Flash adverts on the screen, just as you would on a PC browser. I was also to click through to the audio/video section and click to watch the weekly news debrief video.

I also tried out Skyfire on the BBC's news site, and could watch the video content there just as easily. The video quality seems as good as you would get while watching on a PC screen, and is quite impressive considering it is being delivered over a cellular (3G) connection.

However, while Skyfire claims that its browser is twice as fast as other mobile browsers, I found it took about a minute to open on many occasions, and some web pages were also inexplicably slow to load, while others appeared as quickly as you would expect on a PC.

It should be noted that these problems could be due to issues with the cellular network rather than Skyfire itself, and the software is still officially in beta even if it is now free for anyone to download and install.

I also tried out Skyfire using the Wi-Fi interface of the S730 handset, and found that pages loaded faster, but this did not seem to any impact on the quality of the video.

Users should be prepared for browsing eating into the battery life of their handset. After a few hours of tests, my phone had used up about half of a full battery charge, whereas it usually lasts for days or even weeks if used just for talking and texting.

With Java and Flash support, Skyfire enables access to many more sites than is possible with some other phone browsers I have used. I was able to create and edit a document using Google Docs, for example, which isn't something I would recommend doing on a tiny smartphone screen, but does prove that it is possible.

I also used Skyfire to log into VNUnet.com's web-based content management system, which is heavily Java-based, and found I could carry out tasks, although the tiny screen again made this difficult. Nevertheless, it shows that Skyfire could be used for emergency access to Java-based enterprise applications, should the need arise to get information while out of the office, for example.

Overall, Skyfire looks like a good browser to try out if you have a handset running Windows Mobile 5 or 6, or a Symbian phone with Nokia's S60 user interface. A brief list of supported phones is available here.