Janie Liszewski posted a remembrance Wednesday, writing ... "My husband, my love, my Peep." She adds, "My heart and soul have been shattered into a million pieces. I never knew it was possible to cry so many tears or feel such incredible sadness. Our journey together has not always been an easy one but in the end and always we have a connection."

She went on to say their love will stay alive. She said instead of saying goodbye ... she'll simply say "so long," as she hopes they'll meet again in heaven one day. Janie also asks Eddie to watch over her and their shared Pomeranian pooch, Kody.

Janie's been with Eddie 11 years now -- they got hitched in 2009. Prior to that, he was married to Valerie Bertinelli for over 20 years ... who also posted in his honor.

Other salutes have been pouring in from rock icons from the same era and beyond -- including messages from Gene Simmons, who called Eddie a "Superhero," adding he's "heartbroken." Ozzy Osbourne said Eddie "Made it look so easy," and his former bandmate Sammy Hagar, said he was "heartbroken and speechless."

Other tributes came in from Nikki Sixx, Flea, Paul Stanley, Geezer Butler, Billy Idol, Keith Urban, Tony Iommi, Pantera, Pearl Jam and so many other acts. They all had kind words to share, most touched on the fact that Eddie was a trailblazer and an inspiration for their own careers.

Moreover, it wasn't just musicians who weighed in on Eddie's passing -- comedian Dane Cook said Eddie's music made him feel alive. Mark Hamill called Eddie, "One of Rock's most extraordinary guitar virtuosos and Jimmy Kimmel said a chat he once had with Van Halen was, "two of the best hours of my life."

As we reported, Eddie died Tuesday after a battle with throat cancer. He was 65.