Can the US Iphone 4s for Sprint be unlocked in Canada?

I've been looking everywhere today. Some say CDMA can't be unlocked, some say it can. Some say it can be done in 3 weeks, and some say in 4 days. Some say its a software unlock some say its a hardware unlock. Some say its $140 some say it $200
Can it be done and which route should I take?

I dropped my iPhone in chocolate milk

Okay, so everything works expect my speakers! I can't hear music or hear the other people on my phone during a call, but my mic works. What can I do?
I don't have a warranty. I think.

How to use AirPlay with the screen on your iPhone 4G?

Same thing with iPhone 5, all Macs, and all iPads.

Added (1). Read the last two words of the question, please. ("How do you use AirPlay with the screen on your iPHONE 4G?")

Added (2). But luckily I can use the iPad that I got from school starting Monday (when we finally start taking them home with us.

Why won't my music sync to my iphone? - 3

Ok well i'm trying to Sync my tones to my Iphone 4 but its not letting me, when i click on sync on Itunes it says "Preparing to Sync" then "Determining apps to sync" then it stops, it doesn't sync it. What can i do?

Is is worth it to pay 100$ to get an iphone 4s instead of an iphone 4?

My husband is due for an upgrade and can get the iphone 4 for FREE or the iphone 4s for 100$?
I have heard that Siri is the only difference, but reading online it seems the 4s is a little faster and can hold more.

I'm leaning toward him getting the 4s, especially because he's gonna be gone a lot and I want facetime to work really well, however I don't know how it works on the 4s compared to the 4. I'm just wondering if you think it's worth the extra 100$ to get the iphone 4s or if he should stick with getting an iphone 4?

Any advice is greatly appreciated!