Next up in our series of gift suggests for the mobile-enthusiasts in your life, we have the HTC Touch Diamond, which we reviewed and rated highly.

The HTC Touch Diamond is still the benchmark Windows Mobile device – it’s a perfect combination of features and design, including every wireless radio you could ever need (HSDPA, WiFi, aGPS, FM Radio, Bluetooth), plus an eye-catching design, and a form factor that many applaud. It uses the TouchFLO 3D interface which looks fantastic on the VGA touchscreen. Right now it’s on Amazon for $538.99 with free shipping, which is about $100 less than you’ll find it at Best Buy. And since it’s unlocked, it’ll work on any GSM network – just pop in your SIM card.