WM to Android ?

[elesbb]

Some things id like to know about android before making the switch..

One thing i loved about WM was you could flash your own ROM with a completely different look and feel then the next guy who had the same phone ..
With android , will my phone look and feel exactly like the guys next to me ? or is there a lot of customization like in WM ?

Does android support MILLIONS of free aps like in WM ? I loved websites like freewareppc.net and the like .

The only way i can browse the web at home is through tethering on my TP2 . How simple is tethering on Android through WifI ? With my TP2 i just launched WMWiFiRouter and tapped the wifi icon and set my phone down and was done .. Is tethering that simple on the android platform ?

Thanks guys for your input !!