Becuse it's at the version 0.2.0 beds were added at 0.4.0 it will never be updated so there's your answer.
you cant have a minecraft pocket edition username
you cant
In the minecraft pocket edition you cant get seed because in the computer version you get seeds from tall grass and there is no tall grass in the minecraft pocket edition
you cant
u cant
for now you cant gust slabs
You cant
You cant
You will need the 0.3.3 update.
Unfortunately, no, you cant. Only on a PC or a Mac
you cant unless it was updated it that case kill a spider
you cant get eye of ender because there are no ender men