I'm have a Moto Droid running 2.1. I have Helix 2 running 7 screens. I notice that my phone is extremely slow. I have heard that widgets can slow things down. I'm running a total of 5 widgets (only 1 per screen).
The speed of the device is really slow and I will occasionally crash (1x very 2-3 days). I really like Helix 2 but am willing to ditch it if there are known performance issues.
Also if anyone has any other ideas of what else could be slowing down the phone I'm very open to suggestions.