SanDisk, one of the largest makers of memory cards in the world is plannikng to release 16GB and 32GB miscoSD cards very soon.

These cards are said to work in devices with microSDHC support.

There are screenshots which are proof of their working in mobiles.

Here’s the list of mobiles currently supported:

Symbian S60

Nokia E51
Nokia E65
Nokia E66
Nokia E71
Nokia E90
Nokia N81
Nokia N82
Nokia N95
Nokia N96
Nokia 5800 XpressMedia Tube (eary fw 1.0.0.2701)
Not listed S60 devices with SDHC slot (like Nokia 6120c, Samsung G810) should work too.

PC

Asus EEE PC (with SD-adaptor)
HTC Shift (with SD-adaptor)
SDHC-compatible card readers (USB)

Windows Mobile

Samsung SGH-i900
Samsung SGH-i780
Samsung SGH-i550
Samsung SGH-G810
Toshiba G910
Toshiba G710
HP iPAQ 614 en 914
HP iPAQ 114 en 214 (with SD-adapter)

HTC Touch Diamond
HTC Touch Diamond / Pro
HTC S620 (with Windows Mobile 6 update)
HTC S710
HTC S730
HTC P6500 (with SD-adaptor)
HTC Touch
HTC Touch Dual
HTC Touch Cruise
HTC TyTN II
HTC X7500 (with MiniSD-adaptor)
HTC X7510 (with MiniSD-adaptor)

Asus M930
Asus M536

Screenshots

32Gb microSD in E90

32GB microSD in Samsung i780

Thanks to AvWijk