Hewlett Packard's former top-of-the-line iPAQ, the <A href="http://reviews.zdnet.co.uk/review/12/1/2861.html">H5450</A> showed promise as a useful wireless handheld, but some performance issues kept it from living up to its full potential. Now the company is serving up a tuned-up, improved version of that earlier high-end model: the H5550 (£499 inc. VAT, list price), which includes a healthy 128MB of RAM and the latest Pocket PC operating system. Although it may be a bit much for the average consumer, corporate buyers will find it to be a powerful jack-of-all-trades. It's the Pocket PC equivalent of Palm's <A href="http://reviews.zdnet.co.uk/review/12/1/4081.html">Tungsten C</A>, minus the integrated keyboard.