i have never had the need to read PDFs on my phone. i tried it once to see if it accepted password protected acrobat files (bank and credit card statements). at that time, it did not even support that feature. got rid of it. i think it can now handle password protected pdf files. have no other use for it though.
from what i see, it is primarily aimed for people who have to open complex pdf files on the move. and i guess need form filling and submit feature. foxit and other apps do well with the read only aspect. acrobat technology is much bigger than that. 90% of the users have no use for the advance features.
Just a reader and more than 150MB of installation(pc), crap and sometimes had printing issues too. Foxit much better alternative, using it since it was launched for first time. In mobile, sometimes i need to read pdf related to our devices, so have adobe, finding if there is better and lite version.
you are missing the point. the pdf files you open are basic ones compared to what adobe acrobat technology support. this is like saying, why use microsoft word when you can write your documents in notepad.
well explain me why regular people with simple need are still using windows based laptops instead of ubuntu based laptops? at least we are seeing a change. people are switching to tablets for their computing needs. i cannot wait for the time when having microsoft word on your machine is no longer essential because people keep on sending you files in docx format (yeah i realize that libreoffice can handle the xml office formats pretty nicely).