If you still didn't find any room for the time of the conference,
we can give you a hint:
droidcon Kraków 2015 is happening in the hotel ;)
And to be more specific:
Best Western Q Hotel, Wygrana 6 st., Kraków
We worked on some discounts for droidcon Kraków attendees. If you decide to stay there, contact the Hotel on Individual Reservations, use the code 'droidcon' and get a discount :)
We are working on some more places for you, so if the choice above does not meet your expectations, wait a bit more. There will be an update!