Just want to make sure that the problem is not specific to GeoExpat's code.
May not work in the app, but work just fine on mobile on Android. (I can see you're on an Android phone from your signature.)
Can you go to Hong Kong Democracy Protests: CRT’s Live Blog - China Real Time Report - WSJ
And let us know if you can see the embeded tweet @ 12:25 pmby Jacky Wong
The text is
"umbrella revolution" under scorching heat in #hk #occupycentral #OccupyHongKong #OccupyHK
Are you by any chance using a corporate Wifi connection or being routed via Singapore. Two or three reports of not being able to see embedded tweets can be tracked down to banks that are routing via Singapore.
(Don't want to start any rumors ... just chasing down the obvious problem areas...)