So maybe Sprint’s unlimited plans aren’t enough of an incentive to make the leap. Maybe you need that little something extra as a kick in the pants before you sign the next two years of your mobile life away. Well if you’re a fan of Palm smartphones, we may have just the thing for you. Thanks to wirefly.com, new Sprint customers can get their hands on an Onyx Black Palm Centro for free with free shipping. No annoying rebates to deal with, no minimum plan requirements, just free. Normally $99 after a $50 rebate with a 2-year contract on Sprint, the Palm Centro is a nice smartphone option if Palm is your thing. It can handle all the basics and is compatible with all of the Sprint goodies that you might be eying. EVDO, Sprint TV, navigation, etc. The handset itself sports a full qwerty and 65K touchscreen, Palm OS 5.4.9 and a 1.3 megapixel camera. No, the Centro won’t be dropping any jaws but if you need a compact smartphone that can handle the basics in terms of business and pleasure then this little guy might just be your bag.