A few years ago I saw this request for information from the Department of Homeland Security regarding a "low profile", cell-phone look-alike radio:
http://www.cbd-net.com/index.php/search/show/575529
A recent posting on the "Batlabs" board indicates that Motorola has come out with just what DHS wanted, and they are calling it the XTS4000:
http://batboard.batlabs.com/viewtopic.php?p=313386&sid=1896dc86ad52bb7b6e99d3773ecc31f2
While there is some speculation that these were developed with the IWN trunked system in mind (since they will do P-25 VHF trunking), I would guess that any federal agency using VHF systems would be interested in a radio like this. This model covers VHF frequencies, but could a UHF version be in the works?
Some additional information on the radio can be found at these links to the FCC web site:
Photos:
https://gullfoss2.fcc.gov/prod/oet/forms/blobs/retrieve.cgi?attachment_id=738677&native_or_pdf=pdf
https://gullfoss2.fcc.gov/prod/oet/forms/blobs/retrieve.cgi?attachment_id=738678&native_or_pdf=pdf
Operator manual:
https://gullfoss2.fcc.gov/prod/oet/forms/blobs/retrieve.cgi?attachment_id=738680&native_or_pdf=pdf
https://gullfoss2.fcc.gov/prod/oet/forms/blobs/retrieve.cgi?attachment_id=738682&native_or_pdf=pdf