Is there still any development going on with Plasma Mobile? The website has not been changed in ages, and there have been very few forum posts, it looks like Plasma Mobile related work has stalled.

You can follow the development status at http://kubuntu.plasma-mobile.org/.
Just give it a try. But you are right, forum activity is very quiet.

Hello. Is there no methods to rub some android apps?

sonam wrote:You can follow the development status at http://kubuntu.plasma-mobile.org/.
Just give it a try. But you are right, forum activity is very quiet.

I do not have a Nexus device, so I cannot give it a try.

antonkapustin wrote:Hello. Is there no methods to rub some android apps?

No, there is no way to run android apps right now.