One can purchase a legally unlocked phone from a variety of places. The United Kingdom sell phones unlocked for a higher, non-subsidized price, and even in the US you are still allowed to purchase an unlocked phone from your local cellphone store - you are just not allowed to unlock them if they already come locked.
Unlocked smartphones can be bought at phone stores, where, besides selling phone plans they also offer the possibility of buying unlocked smartphones such as iPhone or BlackBerry.
There are various places where one can purchase an unlocked Samsung mobile phone. Websites such as eBay, Overstock, BestBuy and ShopBot all sell them.
One can purchase unlocked mobiles at stores like Canadian Tire, Best Buy, Future Shop, Business Depot, Target, etc. One can also purchase them online at sites like amazon, eBay, etc.
Yes you can legally join an unlocked network. If they wanted to keep there network private and didn't want any one to use it they could stop the network from broadcasting or put a password and lock the network.
One can purchase these types of smartphones from local mobile carriers. One may also purchase these phones from local cell phone stores or kiosks in the area.
One can purchase a cheap Sprint smartphone from various retailers. One can purchase cheap Sprint smartphones from websites such as eBay, Tech Bargains, and Everbuying.
1800Mobiles.com is one place to buy unlocked Verizon cellular phones. They have models from Motorola and Blackberry for sale.
Amazon, Overstock, eBay, Newegg and the Motorola companies webpage or stores would be the best places to purchase an unlocked smartphone. The only way to know for sure any cell phone is unlocked is to buy the phone in person.
Yes, wether the iPhone is legally unlocked or jailbroken-unlocked.
Huawei modems can be unlocked using unlock codes... you can purchase one from Classicunlocking.com
It is hard to find an unlocked Blackberry Pearl legally in the UK. A person cannot buy one from a regular retail store. This leaves online stores such as eBay, where previous owners sell their already unlocked phones for others to buy.
You can easily unlock your own GSM phone by reading various articles online such as the one provided by How Stuff Works or eHow, but if you want to directly purchase one that is unlocked you can do so online from Tiger Direct, eBay, Future Shop, and My World Phone.