Hi,
I work for CSR aptX - currently the following source devices support aptX:
- Motorola Razr
- Samsung Galaxy Tab 7.0 Plus
- Samsung Galaxy Tab 7.7
- Mac OS X
- Creative ZiiO Tablet
- Creative Zen X-fi3
- Dongles from Sennheiser, Creative, Jaybird
There will be many more source aptX enabled devices coming to market in the next 12 months.
I hope this helps!