You, up front!
If you are coming from an iPhone background, the front of the Hero will seem to be festooned with a veritable plethora of buttons. Heck, even some Windows Mobile phones have less buttons. This is not really a bad thing, as the Hero actually has only what's required of it as per Google's Android guidelines. Right beneath the screen (on the metal band that surrounds it) there are four keys Call, Home, Menu and End. Beneath them, centered is a trackball to the right of which there is a rocker button that serves the Search/Back functions.
There are only 2 issues with the buttons on the Hero. The first isn't a problem for me since I'm left handed, but apparently the placement of the Search/Back rocker is not well suited for right-handed people as it requires triple jointed thumbs. The other issue is with the trackball itself. It's not always precise. It's almost like you have to press it half way for it to register some times. It's by no means a deal-breaker and it's easy to get used to, but if you have a light touch it does crop up from time to time (ie: when navigating the home-screens and switching directions).
The trackball does however act as notification LED and the cool factor of that mitigates a lot of things. I know you've all probably seen it in videos. Fact is, it's way cooler in person. The first time you're in a meeting/classroom/library with your phone on silent in front of you and the trackball begins to slowly pulsate to tell you you have a new SMS you'll think to yourself: Why yes! My phone IS awesome!
The screen, Boss! The screen!
I'm guessing we've danced around the subject long enough. Probably 90% of what makes or breaks the experience when using a touchscreen phone is, well, the touchscreen. You can all relax on that point as the Hero's is damn good. Not only does it display crisp images and have rich colors, but the touch part is precise and responsive.
Multitouch (in the supported applications) works very well, although it does feel somehow different from the iPhones. I can't tell if it's better or worse, it's just different. I can only advise you to go to the store and play with both to see how they compare. The problem with multitouch on the Hero isn't one with the Hero itself, but rather with the underlying 1.5 version of Android which, technically, has no multitouch capability. With any luck Hero users will soon be getting the 2.0 or 2.1 release of the firmware, as those versions have built-in support for all our greasy fingers, but as it stands, multitouch on the Hero just means you can pinch'an'zoom in the photo viewer and browser.





