iconbit callisto 300
Last upgrade in the oficial web.
It runs smoother and some bugs fixed, there is a new Smart option with three modes: normal, sport and just wach.
I write an email to iconbit to fix some problems with the accesibility, becose it does not work propertly. Hope they answer quick or they upgrade
Easy to root but there is no reason to do it for the moment.
Here in Spain mine its working most of the time with H+ is for HSDPA+, which delivers much higher speeds than normal 3G. Technically it is an upgraded 3G network. so if you have H+ then your network is faster than if you get only 3G. and H+ is used only for data download. so you will not see it in normal voice calls.
Based on your network, callipso 300 can handle H+ speeds up to 42Mbps. 3G is only 384kbps.
Also I didnt have any problem to transfer files by bluetooth with note 2 and others like inves duna tab or PC with a universal bluetooth connector.
Apps instaled and working whatsapp, line, viber, polaris office, teamviewer, quick support teamviewer so i can remote control with screen display in my PC and Tablet, flash player.
Micro sd supported 32Gb no 64Gb tested and no reconiced.
1Gb ram ok
If i found anything strange I will post it here.