I have one of the TINY MicroSDHC card readers from DealExtreme. It's this one: http://www.dealextreme.com/details.dx/sku.7106




Just tried it now works a treat, includes the obligatory bl00 LED. The plan was to shimmy a connection to it via the MicroUSB socket using a tiny ribbon cable [so the stand is still finctional] and stick it on the front/back of the N810. It's no wider than the front bezel of the N810 (and only about 3mm thick) so not too much of a problem having it there all the time.

Failing that, solder a normal MicroUSB plug on the end of it and use it directly.