We just found out that users who unlock their G1 will not be able to use the ShopSavvy application on their Android-powered handset. For the time being ShopSavvy is only available if you have a SIM card for a country that they currently support (US, UK, Germany, Austria, Poland, Czech Republic, Holland, Japan and China).
This issue was first reported when A Phoenix user phoned ShopSavvy developers, Big In Japan, reporting that the application was not in the Android market. Turns out the user did not have a compatible SIM card in their G1; this creates a problem with the application being “internalized” for each market.
By not having a SIM card your location cannot be found resulting in the application not showing up. Developers say that if more users go the unlocked route they may adapt accordingly to fit the overall needs of customers, but until then users with an unlocked G1 are simply out of look.
How accurate is the info you wrote about???
Can you please tell me what APN settings have you used.
I honestly don't know why this is "news" because this features is old as hell (since the G1 launched in the UK). But in the developer dashboard we have the ability to select which locales our apps will show up in. Thus the reason why it'll show for certain region's SIMs and not for others.