HTC Droid Eris and Sense UI Question

[IRunGameEP]

My girlfriend has a Droid Eris and she is currently on 1.5. From my understanding HTC needs to update Sense UI before she is able to get the 2.0 or 2.1 upgrade. Say she didn't want Sense anymore and just wanted to upgrade to 2.0 or 2.1. Is this something that's possible? Will she lose any functionality? I think it would be worth it to ditch Sense UI and just be able to be on the latest firmware. As these updates become more frequent, I think relying on HTC to keep up is a little unrealistic. Upgrading the firmware at your own pace seems more appealing. Is this possible?

 

[TheSultan]

you don't need to ditch anything to upgrade to 2.1....2.1 includes Sense

 

[IRunGameEP]

The OTA update hasn't hit her phone yet...

Say 2.2 is released for the Droid tomorrow (I know it's not going to be). Would it be possible to take 2.2 and put it on the Eris before it's released by Verizon/HTC if you're willing to lose Sense UI?