Unfortunately, the S2 has very limited 4G (LTE) support, and the 3G networks are being shut down. I believe, based on the supported bands, that it would only work with AT&T. The 1G of RAM is going to make things difficult moving forwards too.
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Ultimately, we need something even beyond Google's Fuchsia OS.
First, we need hardware that is relatively standardized, and able to be identified at boot time. Just like how you aren't bothered by having an extra USB controller on your PC motherboard, or which PCIe slot you plug in your network card. We need a standardized means of identifying on-chip and off-chip peripherals available to the system, so that we can have a standard set of drivers loaded automatically.
This is hampered by all the changes (over the last couple decades) in things like power management and security (secure boot).
It is not all bad news. For example, there is relatively low diversity in USB host controllers, everyone tends to use the same standardized hardware interface.
But there hasn't been much cooperation across the industry to standardize peripherals in the embedded world like there has been in the PC world.
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Ultimately, we need something even beyond Google's Fuchsia OS.
First, we need hardware that is relatively standardized, and able to be identified at boot time. Just like how you aren't bothered by having an extra USB controller on your PC motherboard, or which PCIe slot you plug in your network card. We need a standardized means of identifying on-chip and off-chip peripherals available to the system, so that we can have a standard set of drivers loaded automatically.
This is hampered by all the changes (over the last couple decades) in things like power management and security (secure boot).
It is not all bad news. For example, there is relatively low diversity in USB host controllers, everyone tends to use the same standardized hardware interface.
But there hasn't been much cooperation across the industry to standardize peripherals in the embedded world like there has been in the PC world.