PLEASE KEEP IN MIND THAT THIS IS IN NO WAY TRASHING THE HERO
While I am still worried about whether 2.1 will TRULY reduce the lag on the Hero....the thing I'm worried about most is Flash 10.1.
Am I the only one here who thinks Flash 10.1 is gonna be TERRIBLE on the Hero? Our processors are just WAY too weak. Luckily, I am a premier customer on Sprint, so I can upgrade in December and something stronger will be out by then. I'm excited for Android 2.1, but am scared about the future of the Hero because of it's processor.
For one, from what I've read, we WILL NOT be able to play 3D type games that run on the iPhone. This is one reason I have considered a Pre or Samsung Moment. I use to have the Pre, and the hardware, battery, and bugs sucked. But it at least has the potential to be better with its Omap 3430 Arm 8 Cortex chipset. Same with the Moment; played with it in the store and HATED IT. The thing is ugly, bulkier, multi-touch less, and running stock Vanilla Android 2.1; however, it does have a stronger processor that is capable of 3D games found on the iPhone. No, I don't need a PS3 on my phone, but I do like having a device with potential and possibilities; I AM paying almost 200 bucks for the thing.
Sadly enough, I'm still considering going to one of those two phones simply because our phones lack the potential to go ANYWHERE beyond software updates that basically include a few more options, a different GUI, more sercurity, and other small features. I'm probably going to stick it out, and PRAY that 2.1 keeps me held over. I would bet 100 bucks right now that the keyboard will still lag HORRIBLY, browser still be slow (WITHOUT Flash....gonna be even slower with it), and multi-tasking be painful.
AGAIN....PLEASE KEEP IN MIND THAT THIS IS IN NO WAY TRASHING THE HERO
That being said, I love my Hero. The form factor and build are just something I can't leave. SenseUI is something awesome, and overall it doesn't really give me TOO many problems (until I try to multi-task). I just wish they had built the device with the long run in mind; for it to have the potential to do everything (if not more) than its competitors with up-to-date hardware.

Add to that that the Moment WILL get 2.1, can most likely run Sense UI NOW, and has a physical keyboard (the worse I've ever used on a smartphone). I just don't trust Samsung and their commitment to the device. I think they just threw out an Android phone to keep up with the pace and go along for the ride (it's still running 1.5....I mean come on). I really don't think 2.1 will be out for the Moment anytime soon, while HTC has more pressure to release it as soon as possible.
AGAIN....PLEASE KEEP IN MIND THAT THIS IS IN NO WAY TRASHING THE HERO
I'm holding out until CES to see what Palm has in-store of the Pre. If they demo GPU and SMOOTH running Flash, I'm ditching Hero. If they simply mention small updates (which do absolutely nothing for the phone, with the exception of 1.3.5 that removes App Limit) then forget it.