Mid month these UAs came through:
AndroidDownloadManager
UserAgent
"""Mozilla/5.0 (Linux; U; Android 3.2; en-us; Xoom Build/HTJ85B) AppleWebKit/534.13 (KHTML, like Gecko) Version/4.0 Safari/534.13"""
Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.1; Trident/4.0; .NET CLR 2.0.50727; .NET CLR 3.0.4506.2152; .NET CLR 3.5.30729; .NET4.0C; Creative AutoUpdate v1.40.01)
"Mozilla/5.0 (Linux; U; Android 3.2; en-us; Xoom Build/HTJ85B) AppleWebKit/534.13 (KHTML, like Gecko) Version/4.0 Safari/534.13"
All from same IP: 72.253.245.n
No robots.txt
Hit only one file (a very LARGE pdf) and... that's all I got, folks!
Curious if anyone has info regarding above.