Bing found the following results
Net_UserAgent_Mobile - PEAR
Net_UserAgent_Mobile_GPS - PHP
Net_UserAgent_Mobile - PHP
pear/Net_UserAgent_Mobile2 - GitHub
GitHub - pear/Net_UserAgent_Mobile_GPS
Install and use Net_UserAgent_Detect via PEAR - Stack Overflow
Releases · pear/Net_UserAgent_Detect · GitHub
php.pear.general: [ANNOUNCEMENT] Net_UserAgent_Mobile …
user agent - Easiest Way OS Detection With PHP? - Stack …
[ANNOUNCEMENT] Net_UserAgent_Mobile-0.7 (beta) Released.