[sicelo]

Nokia N900 Motorola Droid 4

For these two, see https://maemo-leste.github.io/

You can text and use gps on both of them, as well as make voice calls on the Motorola Droid 4 (calls work on N900, but you need complex audio routing and audio filtering. If anyone has experience with Linux audio, the project will appreciate their assistance)

Yes, they both have non-free PowerVR GPU, but its blobs work on Linux mainline, at least

[GhettoComputers]

Too bad about the CDMA network stuff and 3G, it doesn’t seem like it’ll be usable anymore. If VOIP works I think the calling issue can be mitigated.

[sicelo]

3G is still working where I live, and will be, for quite some time :-) And yes, VoIP works (if you install a VoIP application), so that's a non-issue.

[GhettoComputers]

That's good and bad haha, 3G was terrible. I agree with VoIP, I don't use regular calls anymore. Its amazing that the N900 is still being supported. What do you use these devices for? It seems like you'd have to disable javascript to browse with that ram amount, have to buy expensive replacement batteries or outdated OEM, and make a lot of tradeoffs. What keeps you using them over a newer one or a postmarketOS supported one? I love having control over my hardware, but I am less willing to trade off performance, I will root or jailbreak a phone and use it for 4 years or so, still love my 2012 S3 with root and 2GB ram though!