You know, quite honestly, you might be able to activate an old firmware Vita just by putting in your PSN details, it's a long time since I did mine (it was on a 2.XX firmware when I got it) and I forget if I needed the PS3 or not (I've always had one around, so didn't need to consider that). If that works you will almost certainly get hit with an update prompt, though I think the manual upgrade to 3.18 might get rid of that.
Putting in your PSN details while doing the initial setup doesn't fully activate the Vita, it just links it to your PSN account so it later
CAN be activated. As is my understanding.
Most Vita stuff is somewhat complicated at first, and I've definitely stumbled along the way by not reading stuff carefully.
Agreed. At points it becomes needlessly complicated to hack, bit of a challenge for any non-coder I think.
I would debate the earlier point about the Vita being hugely superior hardware to all PSP models, the Go is a beautiful little machine, with a fantastic screen (not OLED fantastic though, I will admit), and tons of built in and cheaply upgradeable storage, I actually have two of them - one for home and one for out and about. The PSP emulation on the Vita through TN-V is fine, but I wouldn't waste too much time with other emulators or even PS1 games TBH, unless that extra diagonal 1" of screen is what's most important to you, the fact that the 200, 3000 and Go PSPs have twice the available RAM of the Vita PSP emulator makes them far better for ps1/retro gaming.
Its different strokes for different folks. Having owned three of the five PSPs (1000, 2000 & 3000 series) I was never happy with the screen quality/size. Maybe the Go is better at least from a quality perspective but by this point I learnt about Rejuvenate and realised with some legwork I could get the Vita to do exactly what my PSPs did, but better, and with a new selection of platform specific games too, for not much more than I'd pay for a 3000 series PSP.
If you go the Rejuvenate route the SNES emulator, for one, is far superior to anything possible on the PSP. Case in point, I could barely get Snes9xTYLmecm running
Super Mario Kart at 23-25FPS on the EU version, whereas CATSFC via Rejuvenate which has only been out four/five months gives you a rock solid 50FPS on the same game without having to resort to the palette/sound hacks needed to try and keep things barely playable with the frame rate chopped in half. Given more dev time it'll probably be able to handle the SFX chip games like
Star Fox aka
Starwing at full speed too.
Also the PS1 emulation with the TN-X exploit is near perfect, I'd probably say Sony's PS1 Loader is based on an upgraded version of the PSP one and you can use both analogue sticks, plus touchpad or touchscreen for the remaining buttons.
There's no doubting that the PSP line offers better value for money and ease of use, but if you're willing to put the time in to exploit your way around the Vita's quirks it becomes the superior console. IMO. They're both fine choices though.