While the T-Mobile's G1, the first mobile powered by Google's open-source Android(software) will be available in stores ( In United States) from October 22 people started comparing Apple's iPhone and G1..
The differences are --
1.The G1 has a QWERTY keyboard while the iPhone does'nt have one .
2.The G1 has a dedicated search button; the iPhone has barely any physical buttons.
3.The iPhone supports Microsoft Exchange server; the G1 does not.
4.The G1 is built on an open-source, Linux-based platform; the Apple iPhone has a applications development platform but Apple tightly controls what people can deliver through its App Store.Each phone has its own damn good features --
While the iPhone has some killer games and is the best phone music player on the planet till date T-Mobile's G1 has truly excellent Compass feature--> It uses Google Maps, the street-level photos which Google has been capturing for the past few years and the accelerometer to give you a virtual 360-degree view of an intersection, even if you're not there.
Coming to the similarities --
Both play music, offer touch-screen interfaces, include Wi-Fi, have their own WebKit-based browsers, have accelerometers, play in the broadband 3G service space.
Both can take multi-megapixel photos , but neither can capture video :)
It would have better if G1 could capture videos and the design of the phone was better(It is no competition to Apple's iPhone wrt its design) .
Source : Yahoo