I replaced my Zefal with a Quicker Pro pump; it has a gauge, and is much more effective at airing up the tires.

The Quicker Pro won't fit on the triangle, so I'm using a Twofish Pump Block to hold it in the space between the pivot and suspension block. It works perfectly on my '08 M3L. Using it on a "locking" Brompton would probably require flipping the quick-release lever around, though.

ECB