heheh.. i just installed ubuntu (macbuntu 11.10 64bit ) today itself... i have been tinkering around with it all day.. application installation is quite easy.. once you've downloaded the deb file, just double click it. a new window opens up where there are 3 tabs in the left, one for installled programs, one for get programs. because you have double clicked the deb file, it starts installing.
a new option gets displayed on the left saying installing 1. where 1 shows the number of programs that are in queue for installation or uninstallation. you click on that, and theres the program name with the progress bar. you dont have to do anything like select an installation directory.. the progress bar just runs as if a file is being downloaded. ..once that completes, your program is downloaded. now just double click the corresponding file to that program, in this case .pdf, and it will open in that application.. its a bit confusing coming out of windows, but the installation process is rather brainless. all you do is double click the file, wait for it to finish and you are done.
i figured out quite a few things today fiddling around with the system settings and stuff. .. most of the hardware works on its own, codecs for files if unavailable, are detected automatically when you try to play a file and you can download it, synchronized the mail software with my gmail, installed and updated my ati radeon graphics driver.. etc. etc.. it will take a little getting used to the kind of functioning ubuntu has.. the startup and shutdown is quite fast on this..
currently dual booting with windows 7.installed windows 8 a few days earlier, fiddled around, then nothing new left to fiddle around with, then installed ubuntu formatting the same partition of windows 8.. the grubloader is quite fast compared to the windows 8 bootloader.. in windows 8, even the bootloader had to load with the loading icon going round and round.. .