The Appbrain app is offering to update my Maps, Street View and Facebook app. In the Android Marketplace, I can't see any option to update (though I have never updated an app before so I don't know how the update would appear). I am wondering if this difference has something to do with HTC customisations. Should I allow Appbrain to update these applications or not?
Were these pre-installed apps? You won't get market update notificatins for apps that are pre-installed, you have to go to the market and manually install any newer versions of the app and then you'll get future updates via the market.
The same thing happened with my Droid. I heard about an update for Facebook (which came on my phone), but never saw an update in the market until I searched for it and manually installed the app.
In some cases AppBrain does not check app compatibility restrictions correctly when deciding to offer the update. E.g., I have Android 4.0.4 (CM9) with the Google Search app version 18.104.22.1689849 installed as a system app (included in
gapps-ics-20120429-signed.zip). AppBrain shows that an update (version 22.214.171.1241924arm) is available for this app, but when I attempt to install the update, Play Market shows “Not supported on your device”, because apparently all versions of this app offered on Google Play require Android >= 4.1.