Can you use iMessage on the iPhone 4 while abroad?

I'm leaving on a trip to Europe tomorrow night. I want to use iMessage to let my loved ones know that I made it safely to my destination. The guy that works at Verizon told me that the iPhone 4 is not a "global phone", so I can't set up an international data or messaging plan, which is fine. But, can I still use iMessage from a Wi-Fi hotspot?

What are some good video editing apps?

With these features:
*Trimming music (e.g. Trimming part of a song for a video) I need this feature on an app As soon as possible!
*Filters
*Being able to smudge out a certain thing (e.g. Liscence plate, address etc)

I own an Iphone 5.

Returned Item on eBay and got no refund?

I purchased an iPhone on eBay right before Christmas because after the new year I will go out of the country and sell the phone for a higher price. I phone was listed as new and unlocked. The package arrived and I took the factory protective plastice off the front and back of the phone and put my own screen protector on it. I leave the country, and try to sell the phne and come to find that it is a Sprint. I contact the seller and tell them of the issue and that It will be months before I'm back in the states. I was away until early March and return the package. The seller has been unresponcive and won't send me a refund. I have tried callng and contacting the seller for a couple months, it's May now. I called eBay and Paypal and were told that the return policy had expired and that I would not be able to open a case with the buyer. What should I do?

Facetime on iphone? Need to know i have facetime in the past?

Hi, i wanted to know if i could find out who i have FaceTime in the past? Basically i FaceTime a friend but didn't save his number, now i have lost or deleted it unintentionally, is there anyway, i could find out who i have FaceTime to retrieve that number?

Putting new songs on Iphone 4s?

I put the majority of my songs on my iphone a while back, but that laptop broke and I tried adding new songs with this different laptop and keeps trying to delete my older songs, but I want to keep them. I logged into the same AppleID account all three times.

IPhone Sim card - large and small?

The situation is, I have an IPhone 4S and an IPhone 3.

My IPhone 4S uses a micro sim but it is broken.

My IPhone 3 has a larger Sim slot.

Is there anyway I can put the micro sim card in the larger sim slot? If I have a holder that means it isn't loose in the Sim slot?

It would be a temporary measure for a couple of weeks until I get a replacement IPhone 4.

Is it okay to leave my iphone5 off for 3 months?

Is it okay to leave my iphone 5 off for 3 months straight?
because i'm going to Marine Corps Bootcamp soon and the three months there i won't be able to use my phone.
if it is okay, at what battery percentage should I turn it off at? 100%? 50%? Or should i just drain the battery and recharge it after the 3 months?

How will I get my lost iPhone back?

I lost my iPhone 5 a week ago and I have been asking my mum to call the service provider or even the police pretty much every day since but she still hasn't done anything and there's nothing in my power I can do. I'm pretty sure it has been stolen instead of lost and the person who stole it could be one of the four people I was with (I didn't know any of them very well) on the night I lost it but I really can't remember what happened to it. Let's just say I wasn't in the most stable state of mind and I know I should have been more careful… What should I do? I've run out of solutions.