After months of rumors, speculations, and pictures, the T-Mobile (HTC) myTouch 4G is finally available.  It's the carrier's second 4G-capable (HSPA+) device, and offers the recently released T-Mobile G2 a run for its money.  It's available now for $199.99 with a two-year agreement, and so far, I've been very pleased with it.  Here's what I've discovered thus far:

• Like myTouch devices of the past, the 4G comes in a nifty little pouch with an AC adapter module, USB cable, earbuds, and instruction manuals.
• The 3.8-inch LCD offers 800 x 480 pixels and 65,000 colors.  While the specs aren't impressive compared to the AMOLEDs of the world, I'm incredibly surprised with how crisp the display looks.  Colors are very rich, and pictures look great.
• The myTouch 4G feels great in the hand, and there's no creaking whatsoever.  The device is made with premium materials, and the chrome accents and metal battery door are a nice touch.  At 5 ounces, the phone is a perfect weight, and
• The myTouch 4G runs Android 2.2 with an updated myTouch-themed version of HTC's Sense UI.  Those transitioning from a Sense-based device will find the user interface familiar, though there are some differences.  Icons are boxed, there are a few new options in the phone application, and the myTouch version comes with seven "themes" for you to choose from.  At first, I missed the simplicity of the standard Sense, but the myTouch version continues to grow on me.  If you don't care for the myTouch version of Sense, there are several homescreen alternatives in the Android Market.

• On that note, the phone is powered by a 1 GHz Snapdragon processor, so there was little to no lag.  The 1.2 GB (approximately) of internal storage is a nice touch, though Android 2.2 allows apps to be saved to the microSD memory card.  With an 8 GB microSD card included in the box, you should be good to go.
• I've been impressed with the 5-megapixel camera, though I've noticed an interesting issue.  The autofocus does a great job and zooms in appropriately, but the picture often comes out slightly blurry.  I haven't tested video quality yet.  The myTouch 4G offers a front-facing camera for video calling (or taking pictures of yourself).
• Call quality has been good thus far.  My callers reported great results, with one telling me that I sounded like I was on a landline.  Earpiece volume is great (I had to turn it down, which is always a good sign), and the speakerphone is equally loud.  I haven't had time to take it to a T-Mobile dead spot yet - stay tuned for that in the full review.

• Like the T-Mobile G2, the myTouch 4G uses the "H" icon for everything; outside of checking the settings, there's no way to tell whether you're on HSPA+ or HSDPA.  Sadly, in the times I've been in HSPA+ areas, I've been very disappointed with speeds.  In one test that I did during an off-peak time, I reached a download speed of 5.2 Mbps, but the myTouch 4G typically hovers in the 2-2.5 Mbps range.  
• The phone has a 1,400 mAh battery, and oddly enough, battery life has been better than 1,500 mAh devices like the Samsung Galaxy S line and the EVO 4G.  With moderate use that involved calling, text messaging, e-mail, use of apps, and quite a bit of web browsing, I was able to make it well into the evening before the low battery warning flashed.  Given Android's poor history when it comes to battery life, I've been very impresssed.