I'm running Ubuntu right now and love it. I do wish that it didn't come with Amazon by default, but as a free OS, I accept that there's going to be some of that sort of thing happening.
Regarding battery, I was under the impression that it would charge when being used as a desktop. Is this not correct?
It's not even implemented in an intuitive or user-friendly way. When you search your computer, you don't expect Amazon search results to randomly appear.
Compare the Ubuntu dash search to Spotlight on OSX, it looks very amateurish. Instead of improving it, their developers have to waste their time fudging Amazon search results in.
Why so particular with Ubuntu, do you e.g. distrust (and stop using) Google for displaying ads? What about Windows/OSX which are orders of magnitude less trust-able than an open source OS. If you don't like a more mainstream consumer Linux then why not install Arch or Debian or Bodhi and refrain from badmouthing?
The vast majority of Linux distributions are free and include none of this sort of things, with some of them (e.g. Debian) having been in continuous existence for about 20 years. Whatever your opinion about this move by Ubuntu, you can't say that it's something that has to happen with free OSes and that you have to accept.
There's a missing apostrophe there. It's "free" in that it doesn't come with a price-tag. It's being paid for, just in other ways. It might seem nit-picky, but to me, at least, it's an important distinction. Facebook is "free" also, but you're paying for it by looking at ads. Google search/email is "free", but you pay for it with ads.
I personally hate the idea that something is "free" but you pay for it with your time/eyeballs. In some regards (like this) I am old-school. I like the simple model of I pay $X for Y product, done.
I don't really agree with the mentality of "ad-supported is not free". It's one thing if you're giving up your data (as in the case of Facebook), it's another if it's limited to glancing at an ad (in the case of a blog or newspaper). I don't know the details of where Ubuntu would fall, but if you define merely "looking at something" as payment, you should be asking for refunds from any man or woman you've ever "paid".