TheMeatly has said that Bendy's name was a typo. There is no current comment on what his name was originally.
There are radios scattered throughout the chapters and play Bendy and the Ink Machine fan songs. In Chapter 1, you can hear Kyle Allen's "Bendy and the Ink Machine Song". In Chapter 2, you can hear DAGames' "Build Our Machine". In Chapter 3, you can hear Random Encounters' "Bendy and the Ink Musical". And in Chapter 4, you can hear JT Music's "Can't Be Erased". Finally, in Chapter 5, you can hear Lauren Synger's "Lonely Angel/I'll Be Your Angel"
Youtuber Jacksepteye has a hidden cameo in Chapter 3 in the toy room. His cameo is that of the toymaker's recording, Shawn Flynn.
TheMeatly has commented that after all 5 Chapters are released for Bendy, he plans to release a box set of all chapters of the game.
Bendy And The Ink Machine gained a huge following for youtuber DAgames. He made the song "Build Up Our Machine", which gave him a large amount of success, and even made it's way into the game.