As an addendum, it is worth pointing out that the Malthouse's handpumps are, of course, genuine, unlike the fake ones round the corner at The Bruhaus and The Tap Haus, where the beer is pushed up to the bar by carbon dioxide at the pull of a switch. Admittedly, the artificial carbonation is relatively low at those establishments, but the beer served is some of the most unpleasant, stale, metallic-tasting rubbish that has ever passed this drinker's lips. These places' pretence at serving proper beer simply give the genuine purveyors of the drink we all love, such as The Malthouse, a bad name.
As a further and final addendum, the team behind the Malthouse are responsible for the Fork and Brewer on Bond St, where brewing finally started after various delays in September. Apparently they've had repeated requests to install handpumps and serve real ale. Strangely, they have, as yet, not succumbed.