The KDDI PLY is Hikki's new cell phone.

PLY is a cool touch screen phone, which follows the concept of layers, inspired by plywood.

The PLY came out just this month. It is likely that Hikki just got this phone sometime in the past couple days! The original concept for the phone was to have each layer support a function, such as: a gamepad, pico projector, printer, and an analogue clock where the minute hand sticks out past the screen! However in the actual production model, it seems most of those concept features did not make it in. It looks like a slider style phone with layered tab buttons on the side.
More info about the PLY:
Original Concept; iida Product Site; concept-phones.com


We know that this is Hikaru's current phone because on her message blog, the images that she uploads as a part of her messages contain EXIF data that reveals what device the pictures were taken with.

According to this data, it appears that Hikki has been quite fashionable with her phones in the past year or two and gets new ones quite often. So far, these are the different phones that she has been using for 2009 and 2008:


- KDDI PLY
She got this phone as recently as this Saturday Sept. 19th, 2009.
example pic

- KDDI A5525SA
She was still using this phone as recently as Wednesday Sept. 16th, 2009, but has been using this one since october 2008. This phone seems to be her Japan phone as it is only used when she is in Japan. It's interesting to note that this phone is marketed as a phone for kids. It also features GPS tracking so parents can monitor where the kids go.
example pic

- Apple iPhone
She used (or still uses?) this phone in the US for most of 2009 in US, starting in early February. This was the phone she was using during the release of "This Is The One" and it's promotional activities.
example pic

- RIM BlackBerry 8320
Before getting the iPhone, this was the phone she used in the US from at least November 2008 (maybe earlier) until early February 2009.
example pic


- KDDI W61SH
This was Hikaru's Japan phone for most of 2008, from around her birthday, January 19th 2008 until mid-November 2008.
example pic

- KDDI W42T Neon
We had reported here that Hikki used the Neon back in 2006. She has apparently been using this phone since 2006 until just before her birthday, Janurary 18th 2008. There may be other phones in between these years but i havent checked.
example pic


Extra:
- KDDI W61CA
The pictures here, taken around Sept. 25th 2008, from the W61CA phone of Hikaru's friend, while she was on a de-stressing vacation to the mountain areas of Nagano.


Here are also some of the digital cameras that Hikki uses:
- Leica C-LUX 2 Digital Camera
example pic

- Olympus stylus 830 Digital Camera
example pic

- Fujifilm FinePix F10 Digital Camera
example pic