Hijacked from here, although the included video clips have been omitted because IMO there is too much YouTube embedding on blogs. If you really want to watch something, you can find it yourself.
“Unless you’ve had your head buried in some sort of technology sand, whatever that is, you can’t have missed Apple’s iPhone and 3G successor over the last 18 months. Celebrated by geeks, trendy folk and muggers alike, the talented touch screen mobile has re-invented the smartphone.
What you might have missed however was the unveiling of a new rival in the touchy feely phone stakes this week, the T-Mobile G1. Made by HTC, it’s the first phone to run Google’s open source operating system Android. It’s out in November, but the toolkit is already available, meaning those crazy coders (bless’em) are beavering away to come up with some prize programs for us come release date. Confused about which giant computing company deserves your green? Read on to see the best each phone has to offer.”

Top 5 Apps on the G1:
1:Street View
Combining your standard GPS with Google’s paintstakingly mapped photos of every street in the country means you have no excuse to get lost ever again.
2: Pac-Man
Not just a rip-off either, but the original arcade classic. Namco are even putting in tilt and trackball controls to give it extra life. Chomp chomp.
3: PicSay
This clever little app lets you edit images on the fly, so you can get rid of that guy lurking in the back of the photo with his finger up his nose before you post it on Facebook.
4: Ecorio
For the more environmentally friendly owners, Ecorio tracks your carbon footprint while driving. GPS with a conscience.
5: Cab4me
Scrap all those taxi cards you’ve got in your wallet – this program will call up your nearest minicab office with one button push. Or should that be tap?

Top 5 Apps on the iPhone:
1: BBC iPlayer
If you’re in a wi-fi area, you can catch up on Neighbours on your phone. If the BBC hadn’t lost it, that is, fools.
2: Sling Player
It’s still in development limbo, but when it finally launches, Sling Box owners will be able to stream their TV or DVR straight to their iPhone. Now that’s TV on demand.
3: I Am Rich
Sadly not available on the App Store anymore, this app offered you a glowing light on your screen. For $999. All this does is prove you either have serious cash to burn, or are sectionable. Probably both.
4: Airremote
Don’t like how your home remote controls have buttons you have to push? Use your iPhone’s touch interface with this app that makes your mobile a universal remote.
5: Sega Genesis Emulator
Get some nineties nostalgia on your phone. You have to be a bit naughty and jailbreak the iPhone, but it’s worth it to have Sonic blasting across your screen on the train.