Google today has released a significant update for their flagship Android phone – Nexus One almost right after when Apple pushed firmware 3.1.3 for iPhone users. This new update (ERE27) for Nexus One brings the much needed official support for multitouch in Web Browser, Maps and 3D Gallery. You can now finally use pinch-to-zoom gestures just like how you can on an iPhone. This update also fixes the 3G issue which has been bugging T-Mobile users. The complete feature list as illustrated on the official blog is as follows.

If you are a Nexus One user and are having issues getting full 3G network speeds on your phone, Kevin C. Tofel of jkontherun may have a solution for you. Kevin has been stuck with EDGE connectivity on his Nexus One using T-Mobile network for over a week, despite the fact that his old G1 was able to pull full broadband speed from the same network in exact same location. After applying a simple fix, he has been since able to get full mobile broadband speeds even after reboots.

In just under a week of official release, Nexus One has already got custom cooked ROMs waiting to be flashed on the said handset. Paul over at the Modaco forums has released one of the first custom ROM for Nexus One which packs a custom kernel, and includes busybox, nano 2.09, parted and sqlite tools, Wireless Tethering option (Yay!), titanium backup and more.

We informed you about the Google Nexus One when it was rooted even before the official launch. And now with just under a week of release, Nexus One has been hacked already to enable both wireless and wired (via usb) tethering option in Android 2.1. Folks over at the XDA forums have released some add-ons, which needs to be flashed over the top of the existing Android 2.1 firmware to get it to work.

We informed you about the Google Nexus One when it was rooted even before the official launch. This was possible because of the engineering bootloader which was shipped with pre-release Nexus One devices. The retail devices have locked bootloaders but Paul at Modaco forums has managed to unlock it so that you can root your retail Nexus One for full file system access on Android 2.1.