Please use our links: LEGO.com • Amazon
Brickset.com is a participant in the Amazon Services LLC Associates Program, the Amazon.com.ca, Inc. Associates Program and the Amazon EU Associates Programme, which are affiliate advertising programs designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.
As an Amazon Associate we earn from qualifying purchases.
More likely is that the web browser is 'identifying' itself as a mobile device. I'm not entirely sure how it works, but essentially, when you visit a website, the web browser tells the site what kind of device it is (desktop or mobile) so it gets the right version of the site. Some tablets have big enough screens that the browser is programmed to ask for the desktop site by default (apparently including mine).
Using the Google Chrome browser (on Android and iOS, I assume), you can usually get around this by going to the menu (the vertical "..." at the top right, next to the URL bar) and checking the button "Request desktop site". Thing is, this doesn't always work, and sometimes the website still serves you the mobile version.
For what it's worth, the above method does work on my Nexus 4 (Android 5). I can get the desktop site, but it's really tiny to read on my phone screen. Having (briefly) seen the mobile skin, I'd say, yeah, it's ugly, but if it's possible to edit it to improve it, I'd take that over reverting permanently.