Nokia Music has always been free. There is a free version and the paid version which is Nokia Music + (unlimited skips and unlimited offline mix download), the free version only allows 4 skips and 4 offline mix download.

Nokia Music allows you to listen offline up to 4 mix radio (i.e. UK Top Hits, US Billboard, or P.Ramlee Songs Mix) so you do not need to be connected to the internet to listen to those mix radio. If you like the song, you can then download the song by purchasing the songs for RM3-4 I believe. Each Mix can have up to 20-25 songs or maybe less (not sure about it coz I never checked)

I tak dapat la evilpuppy. Don't make me Jelly la ... sedih ni.

Took me close to 2 hours straight or was it 3 hours to upgrade to 8.1 on my 920 .... the problem was with the gears. The first update was for some sort of patch before the full 8.1 upgrade. That was like a 30 seconds download. The gears was stuck at the smallest progress bar for close to 50-60 minutes (I rebooted the phone the first time around because I thought it was stuck after seeing that the progress bar was not moving at all after 30 minutes). Someone in WPCentral mentioned that you need to wait for 50 minutes and the progress bar was wonky (no movement and then zaapp 100%), so I did just that and it worked fine.

Then I updated to the 8.1 proper ... this one took a lot longer to download (maybe 10-15 minutes) and then another hour for the Gears and then another 30 minutes for the 19 steps to migrate my data.

Very happy though, he 3 rows options in start screen is awesome. The parallax effect with the background in start screen is magnificent. The only gripe is the VPN, I use Witopia (L2TP, OpenVPN, IPSec) and none is available at the moment. Seems that Witopia will need to publish the required SSL Certificate (Like Junos) in the Windows Store.

I wish Microsoft implemented something similar to iOS .... very simple.

Wait for Lumia 930 (or the Icon in the US). It is basically a Lumia 1520 in a 5 inch aluminium frame

The bug fix update is for those who would like to update to 8.1 but can't (they get stuck after applying the 8.0 patch needed for the 8.1 upgrade), it's not an 8.1 update per say.

Battery is draining pretty bad. That is probably because any new apps you run after the upgrade will automatically be allowed to run in the background. You will need to go into the settings and disable those apps that you do not wish to run in the background.

If you're using Cortana, then Location is also on all the time (otherwise Cortana will not run and all the things associated with Cortana such as Quiet Hours will also be disabled).

It is called Developer Preview for a reason. It is not the final version of 8.1 so bugs and all sorts of issues should be expected.