While survey respondents liked the overall usability of a mobile device and the convenience and portability of having their own computers for clinical documentation/ accessing information, findings indicate certain mobile form factors, features and attributes, mobile device and system capabilities and issues with use of AHLTA (version 838 u21) on mobile devices prevent full adoption of mobile devices within the MHS ambulatory care environment. Key mobile device acceptance factors include offering multiple data input mechanisms to include traditional keyboards, voice recognition and handwriting recognition for the entry of patient data. Conversely, research found that the Window XP Tablet OS 2005 edition handwriting recognition did not fully support the provider’s documentation needs indicating an improved version of the tool is required. Survey respondent’s tolerance to the weight of a mobile device is in the range of 3.5 pounds or less. Workflow findings show differing mobile devices needs for providers based on role, setting, and specialty; It is evident that “one size does not fit all”.