The Optimus line series of Android 2.2 Froyo phones are cheap, built mainly out of rubber and plastics, all have low-end processors (but little lag), 3.2-inch screens with multitouch, feisty little 3.2 megapixel cameras with 480p recording, and are the best entry-level Android phones you can buy today. The user interface is mostly unharmed except for the goofy app launcher, and that means everything except Flash will work as you’re using Froyo. It’s pretty good.
I actually prefer the Optimus U’s profile and the button layout rather than the Optimus T from T-Mobile, and just about every other Optimus phone on almost all the well-known carriers in the U.S (Verizon, AT&T, Sprint, T-Mobile, U.S. Cellular, and Metro-PCS (a.k.a metro-crap). As of the time of this post, the Optimus U is available free on a 2-year contract with U.S. Cellular, which my friends over there gladly sent a review unit of.
To actually read a full review (since that’s why you’re reading this post, right?), then here’s the Optimus T one. It’s the same stuff, except it doesn’t have a different button layout, CDMA instead of GSM, some U.S. Cellular apps and their own wallpaper.