Panasonic had a surprise for us at MWC, a 5-inch prototype Eluga Power, an Android smartphone running Android 4.0. The Power was clearly running an early build of Ice Cream sandwich, there were bugs and issues throughout as we navigated through the device. However, if Panasonic can work the bugs out it might have a real winner here. Like the already-announced 4.3-inch version, the prototype is water and dust-resistant, but unfortunately beyond that we only know that it has a dual-core Qualcomm S4 1.5GHz processor.

Update: The rest of the specs are in: a 1280 x 720 screen, 8GB of storage, 8-megapixel camera, and "superfast" charging that can power the phone up halfway in a half hour.

The 4.3-inch version of the Eluga was also on-hand. It's remarkably thin at 7.8mm and feels even thinner than that because of how the back edges curve up to the screen — it's really quite svelte. It's running Android 2.3 with a twitchy custom skin from Panasonic that includes a completely unnecessary custom swipe to unlock: you have to follow the dotted lines along a strange arc. The metallic finish on the back is very solid, underneath which are a dual-core processor, 8GB of storage, an NFC chip, and an 8-megapixel camera. Panasonic says it will get ICS by summer.