Is the iphone 3GS still a good phone?

I'm going to buy a second phone for myself so i'm choosing between the iphone 3GS and the samsung galaxy S, i prefer the iphone because it runs the latest iOS version unlike the samsung
What do you think? Which phone is better for business purposes?

My Iphone 3gs says no service/searching. What can I do?

I have a 3gs that has been unlocked. The TMobile sim card is in, but it says searching/no service. The carrier does say TMobile. I went through troubleshooting with TMobile and nothing. IOS is 6.0.1 and baseband is 05.16.08.

Cheapest place to buy iphone?

I really want an iPhone 4S or 5' I've been saving for about a month and have about 100 pounds, I'm gunna keep saving till I have about 400'
I need an unlocked one because I already have a good deal on my shitberry, can someone find a link on eBay with a good price?

Would you find this annoying?

Whenever I talk to my older sister about anything, when she is watching TV she talks gets me started then when I'm about to say something like for example last time she asked me about her new iPhone 5. I said if you go here to the app store, it shows you all of this then she just say's wait! And watches tv listens to it. Then after like 5mins says go on what were you saying.

I hate it when she does that and its like all the time, whenever I say something and she is watching tv she talks, then says wait! Listens to TV, then 2mins later says go on.

How do I deal with this? She does it like all the time.

Added (1). I can't she watches the tv, my mom watches it and so do my other siblings I can't stop them from watching it just because of a conversation between me and her.

Prevent hacking into my IPhone?

My little brother and sister keep getting into my IPhone 5, I put a password security on it but they get through it anyway, I don't know what to do.

Iphone 4s technical assistance?

Just got a used 4s that will not open the sim tray, opened it up turns out there's no mechanism to open the tray. When I do put a sim in it has no bars and says 'searching… '. Tried to set activate it with Wi-Fi it can't access the server and with itunes it simply says sorry it can't activate my phone at this time. Anyone else have this problem and a solution? I've already tried updating the ios and restoring to factory settings.

Iphone won't swipe to unlock?

I left my phone unattended for a few minutes last night and now out of the blue, it's not working. The screen isn't responding to touch. I can't swipe to unlock or enter my pass word or anything. Is there anything I can do apart from restarting it? (I've already tried that)

What are the benefits of locked iPhone over an unlocked one?

I'm planning to buy an iPhone, I would like to know what the main difference between a locked and unlocked iPhone is. Plus, what advantages or disadvantages do these 2 different modes have?

If I buy a locked iPhone, will I be able to use the same Airtel SIM I'm using now?