We had earlier reported that the company is working on the Cupcake update and it will be made available as over-the-air push update for G1 users. Android had released the early-look Android 1.5 Cupcake for the developers.
Reportedly, this update will be offered to several Android based handsets throughout May.
The Cupcake 1.5 bundles up an on-screen QWERTY keyboard that is apt for the latest Android devices which come minus hardware keyboards. This new version will be seen on the HTC Magic and Samsung I7500 smartphones.
The 44MB file will be made available only by the carrier as an over-the-air push update and apparently coming to users in the US and Europe.