Maemo Diablo released!

Go get it while its hot.

[Edit] Apparently you need change distribution to chinook on repositories if you want to install your old applications. Personally I'm going to wait. See internettablettalk for more detail.

[Edit 2] See http://wiki.maemo.org/Upgrading_tablet_OS if you're like me and forget allways the appropriate flasher flags.

Performance of Ajax Applications on Mobile Devices

Mikko Pervilä has released his execellent Masters Thesis on measuring Ajax performance on different mobile devices

From the Abstract:

This thesis evaluates the presentational capability and measures the performance of five mobile browsers on the Apple iPhone and Nokia models N95 and N800. Performance is benchmarked through user-experienced response times as measured with a stopwatch. 12 Ajax toolkit examples and 8 production-quality applications are targeted, all except one in their real environments. In total, over 1750 observations are analyzed and included in the appendix. Communication delays are not considered; the network connection type is WLAN.

Results indicate that the initial loading time of an Ajax application can often exceed 20 seconds. Content reordering may be used to partially overcome this limitation. Proper testing is the key for success: the selected browsers are capable of presenting Ajax applications if their differing implementations are overcome, perhaps using a suitable toolkit.

Go read it

Ejecting N800 usb-filesystem from OS X

I recently got a shiny new toy. The Nokia N800. It is a very nice piece of hardware and Os X recognized it right away as two external harddrives. One for each SD-card. The problem is the ejecting the filesystems from finder. When you eject one, it just remounts itself back. And quite fast too.

Even if my work machine is an old and lowly (at least by Moore's Law standards), it was still fast enough to mount the Internal SD-card before it had properly dismounted the the removable one. So after playing the game for a while, I got bored and just plugged the usb-cable off. Only to find out the Os X taunting me for not properly putting away the device.




Then I finally discovered the Proper Way Of Doing Things. It is actually quite simple. When you want to disconnect the usb-cable from your Mac. You just have to:

1. Fire up the Disk Utility (from Applications/Utilities folder)
2. Select the filesystems you want get rid of (see the screenshot)
   
3. And unmount them
   

Screenshot:

Note, you must unmount them, if you eject them they just keep popping back.

Anyone for AppleScript?