There are plenty of companies out there offering different kinds of benefits, discounts and offers on various kinds of cell phones, but the best ones are those that give existing customers a free upgrade for AT&T as well as a free upgrade for T-mobile (not to mention Sprint and Verizon!). This way you can choose the particular BlackBerry model you are interested in from a list offered by AT&T, T-mobile, Verizon or any one of the others. Or, you can choose from other models from Nokia, Samsung, LG, Sony Ericsson and so many other favorite brands.

Most people are always on the lookout for anything that they can get for free and this is one of those offers that should get your attention. If you are about to take on a new mobile contract, or are not happy with the service that your existing one is providing you, then this would be the best time for you to opt for a free upgrade for AT&T or a free upgrade for T-mobile. If you are already subscribing to the services of one of these providers you won't even have to sign up for a new calling plan. But, if you are not happy with your existing service provider then it would make sense to consider taking on a new calling plan. If this is you, for the first time ever you could get the most advanced GPS, PDA, TV under the new free phone for Verizon offer, as well as a free phone for T-mobile, a free phone for AT&T and some other providers, too.

Each time somebody takes a new calling plan with AT&T (formerly known as Cingular), you have the option of getting a free Blackberry Pearl. This model of Blackberry is even sleeker and more stylish as compared to the original Blackberry phone. It is among the hottest and most sought after phones on the market, coming with a host of capabilities, including e-mail, web browser, digital camera, text messaging, and organizer applications with instant messaging and lots more. Hence the Blackberry Pearl would definitely be a wise as well as free upgrade for AT&T, just as it is a an excellent and free upgrade for T-mobile.

Coming in a variety of colors, the BlackBerry Pearl has been created for just about anyone, whether they will use it for business or not. The original BlackBerry was so bulky that apart from business people, others would have found it burdensome to carry around. So, if you been thinking of owning a BlackBerry, now is your chance. What better opportunity is there than to get one for free? All you have to do is sign a two year contract and you qualify to get a free upgrade for AT&T (if you already have an AT&T connection; if a new customer, you still get a free phone for AT&T). After the end of the stipulated time period, the phone is yours to keep and you don't have to renew the contract if you are not interested. The same applies to the free phone for T-mobile or the free upgrade for T-mobile.