New Answer
I think you are
A Nintendo Wii
Once my half brother came into the picture, I was swiftly forgotten by most.
The release of the Wii U caused people to seek the latest and greatest
Even my older brother refused to work with me
NES emulators on the Wii store can be rough and not work well
Maybe because he was 23 years older than me
NES was released about 23 years before the Wii
I started out smart and wanted, but in the end, even my father ignored me. I was supposed to be the future, but my father cast me aside when my half-brother came into the world
The Wii Remote was cool and innovative, but didn't go anywhere in particular, and wasn't used by the Wii U
My father got jealous of a friend and had him two years after I was born. I was worthless to him after that.
??? Can't think of anything important from 2008 for the Wii
A large amount of people mistake me for my half-brother, but that is just not true!
The Wii and Wii U look kinda similar
Most people look at me and think that I'm only twice as powerful as my older brother. Actually, I am exponentially more powerful than him.
The Wii has a 729 MHz processor, whereas the NES had a 1.79 MHz processor
I have two main friends. Although, one makes me more hopeful than the other. We have a long history and they've always been by my side. They even confronted my father when he wanted to cut me loose early.
I think this is a reference to characters, possibly Mario and Link who appear in every console
I ended up only having two main enemies. However, we still work together from time to time
Playstation and Xbox are competitors, but there are cross platform games
The electricity I feel with them makes me feel alive. This is especially true when I beat them, as I know that their power is nothing.
Still not sure about this one, as the 360 and PS3 both have greater processing power than the Wii...
Even though I know my life is coming to an end, It has been a good run. I've made it far and done a lot. I just wish I could have won the approval of my father and his friends.
The last Wii game was released in November 2019, and there will be no further support for it soon-ish
Original (Wrong) Answer
I think you are
Windows 7 or Windows Vista OS. Not sure which, because some of the clues could go either way.
Once my half brother came into the picture, I was swiftly forgotten by most.
This could be the release of Win 8 a few years after Win 7 came out, causing people to upgrade. It could also be the upgrade from Vista to 7
Even my older brother refused to work with me
Win 7 and 1 would have compatibility issues
Maybe because he was 23 years older than me
Windows 7 was released roughly 23-24 years after the original Windows OS
I started out smart and wanted, but in the end, even my father ignored me. I was supposed to be the future, but my father cast me aside when my half-brother came into the world
Gates didn't like these versions of the OS, and kept developing.
My father got jealous of a friend and had him two years after I was born. I was worthless to him after that.
Competition between Windows and Apple? Also, two years is about the time difference between Vista and 7
A large amount of people mistake me for my half-brother, but that is just not true!
Vista and 7 have similar UIs
Most people look at me and think that I'm only twice as powerful as my older brother. Actually, I am exponentially more powerful than him.
Could be the power gap between 7 and either Vista or 8
I have two main friends. Although, one makes me more hopeful than the other. We have a long history and they've always been by my side. They even confronted my father when he wanted to cut me loose early.
Gooooooooogle? And some other software perhaps?
I ended up only having two main enemies. However, we still work together from time to time
Mac OS and Linux perhaps?
The electricity I feel with them makes me feel alive. This is especially true when I beat them, as I know that their power is nothing.
Not sure about this one, honestly these lines make it sound more like a hardware thing than software
Even though I know my life is coming to an end, It has been a good run. I've made it far and done a lot. I just wish I could have won the approval of my father and his friends.
Windows 7 support ended on January 14th, but that was a while ago.
In conclusion
I think that this is Windows 7 OS. However, some clues make me think it could be a model of computer or a generation of gaming console.