Can you use samsung galaxy s3 as a mp3 like iphone? Also, Ipod Touch 5 or IPad mini?

Bought a Samsung Galaxy S3 recently (still on its way from delivery), and going to sell my IPhone 4 and buying either an IPod Touch 5 or an IPad mini.

So first of all, I'm someone who listens to music whenever and wherever, so for me, the Itouch seems like a suitable device for me, seeing as it'd fit nicely in my pocket and easy to carry.
But, I also use my laptop a lot to study, and when I don't carry it around, i use my iphone. But its a hassle because the screen isn't that big.
So my question is, is the galaxy s3 similar in mp3 style to the iphone? Because if so, I'd be leaning more towards the ipad mini, but if not, interested in Itouch.
Also, another question is, what can ipad mini do to help with education?
I have a brother who uses it for uni, but no idea how.
Are you able to download like powerpoints or word document and things like that?

Yes to both

You should get a nexus 7 over the ipad mini but if you need a phone get nexus 4 or s3 but the nexus 4 is better

Yes you can use.

  • What use is an ipad or ipad mini to someone with an iphone and macbook? I'm thinking of getting an ipad mini or ipad 2 for someone who already has an iphone 5 and macbook pro. I don't know how useful it will be since they are not likely to use it outside of their home and i'll be getting the non 3g version so it won't be much use when they take it out anyway.
  • What is a good phone, iPhone 5, Samsung Galaxy S2, or Samsung Galaxy S3? I need a new phone and I'm wondering which I should get. My friend is selling his GS2 for around 50 Bucks and I could possibly get an iPhone 5 or Galaxy S3. Can you tell me the prices with and without the plan. And for people that have these phones could you tell me how good it is and which carrier(Sprint, Verizon, At&T)?
  • What can you do on a iPad mini that you can't do on a iPhone 5? I'm going to buy one of these. So I wanted to know why the iPad mini is popular. I don't care if the iPhone 5 is more expensive.
  • IPhone 5S, iPhone 5C, Samsung Galaxy S4 or Samsung Galaxy Note 3? I have the Samsung Galaxy S 4G for over three years now and it sucks so much, so I'm planning on getting a new phone on T-Mobile. I can't decide between the iPhone 5S, the iPhone 5C, the Samsung Galaxy S4, or the Samsung Galaxy Note 3. I kind of like the Note 3 because it is big and the features are very cool. But I'm not sure which one to get? Do you guys have a suggestion? Like which one I should get. Please don't recommend another phone besides these four.