Google added the whole Czech Republic on Tuesday, June 19 2012. The Czech Republic’s borders to Germany and Austria are notorious for their many casinos and brothels. The brothels in the region of Znojmo (Znaim in German) aim at pleasing the horny men coming from Austria with enticing offers such as “29€ for 1 hour” and “sex as cheap as 15€”. Chomutov (Komotau in German – located at the Czech border close to Dresden) on the other hand got a little bad press by publishing surveillance camera footage and posting drastic warning signs in their fight against prostitution.
Here is a map of the current spottings in the Czech Republic (June 21 2012).

As you can see, the map is still empty – but without a doubt, many new spottings can be found. I will revisit this post in a year or so and add an updated version of the map.
PS: You can keep track of Google’s updates of Street View with this Wikipedia page.