[jrockway]

333 bytes is enough to send plenty of information, like your favorite apps and how long you used them. Consider something like: "com.android.browser:1.4h;1-800-HI-THERE:2.3min", which is only 47 bytes.

[nodata]

and keypresses too?

[jrockway]

Since most Android phones have no physical keys...

[nodata]

(why mention physical keys?)