How come in the PC Google Contact I can sort my contacts by groups but in the Droid I can not sort my contacts by groups???
You can't sort by groups but you can display certain groups that you have set up. Open contacts>menu>display options>select your email account. you will see a list of all the groups you have on the PC gmail. Just uncheck System Group: My contacts and check the groups you want to display. This will filter out all other contacts except in that/those group(s). Don't know if this is what you are looking for though.