5 Months Ago, Fresh says (in Gmail adds new features for iPhone and Android users)  India
The second upgradation is in relation to the android sets with a physical keyboard like the T-Mobile G1. In its blog, Google says, “Now you can use all those familiar Gmail keyboard shortcuts to quickly move through your inbox. ...

And InformationWeek says (in Google Improves Gmail For Android, iphone) The second improvement affects Android handsets with a physical keyboard like the T-Mobile G1. "Now you can use all those familiar Gmail keyboard shortcuts to quickly move through your inbox," Google wrote in its mobile blog. ...
Android Cupcake: Glaring Omissions eWEEK Europe UK

And Techcrunch says (in Google Gives The G1's Physical Keyboard A Glass Of Ice Water In Hell) by MG Siegler on June 10, 2009 The T-Mobile G1's physical keyboard sucks. The keys are oddly spaced, they're too depressed and the device's Leno chin makes for an overall awkward typing experience. The Google Ion (sometimes called the “G2″ or the HTC ...