Previously transacting in US dollars only, online games distribution platform, and purveyors of the popular Humble Bundle promotions, The Humble Store has added Euro and British Pound Sterling to its service.

More interesting however, is the 'Humble Pricing' system they've implemented to make daily adjustments to regional pricing based on foreign exchange conversion rates.

Along with the currencies, we’ve introduced what we call Humble Pricing. Humble Pricing is an automated price that is updated every night based on the US dollar price of the game. Humble Pricing doesn’t scale up for VAT or other charges. It simply translates a single worldwide price to each currency.

So as not to scare off any developers and publishers that prefer the way things are done elsewhere on Xbox Live, Steam, iOS Appstore etc, the Humble Store will also offer the usual fixed regional RRPs as an option:

While we love the simplicity of Humble Pricing, we recognize that it doesn’t make sense for every developer or publisher. We also give them the option to provide an MSRP for each currency or region. The flexibility of offering either Humble Pricing or industry standard pricing means that we can bring you more awesome games at awesome discounts worldwide.

The announcement notes that Humble Bundles, Weekly Sales and Widgets will remain US only transactions, but the new currency options are now available across general Humble Store purchases.