Hey, update the app to the latest version 3.0 and enjoy vector maps available for download within the app:
http://galileo-app.com/
---
Detailed and easy-to-use offline vector maps based on OpenStreetMap data available to download within the app.
No more tricky preparation of offline maps in advance — download vector map of whole country in one click.
This isn't a real issue with Galileo but with MOBAC and demanding to much of the OpenStreetMap servers. I ended up creating my own tile server at home and now have my own map (4 GB), just the way I like it.
OpenStreetMap is now also promoting this with a website: